CLAT UG Quantitative Techniques-Booster-Population, Demographic & Economic Analysis-Test 1
📌 Answers are locked once submitted — results and explanations appear at the end.
QUESTION 1 OF 18
QUESTION 2 OF 18
QUESTION 3 OF 18
QUESTION 4 OF 18
QUESTION 5 OF 18
QUESTION 6 OF 18
QUESTION 7 OF 18
QUESTION 8 OF 18
QUESTION 9 OF 18
QUESTION 10 OF 18
QUESTION 11 OF 18
QUESTION 12 OF 18
QUESTION 13 OF 18
QUESTION 14 OF 18
QUESTION 15 OF 18
QUESTION 16 OF 18
QUESTION 17 OF 18
QUESTION 18 OF 18
Test Complete!
Answer Review
1
The five categories use 24% + 20% + 15% + 8% + 7% = 74% of income. The remaining 26% of ₹72,000 is ₹18,720.
A) ₹17,280: This is the amount spent on food alone (24% of ₹72,000), not the balance after deducting all five specified categories.
C) ₹20,160: This equals 28% of income, but the five specified categories consume 74%, leaving only 26%.
D) ₹21,600: This equals 30% of income and therefore overstates the remaining balance; the actual residual share is 26%.
Elimination: Add the specified expenditure shares to get 74% and subtract from 100% to obtain a 26% balance. Applying 26% to ₹72,000 gives ₹18,720, so the other amounts are eliminated.
Because the specified expenses total 74% of income, the remaining 26% is ₹18,720, making option B the best answer.
Used % + balance % = 100%.
2
The increase is ₹720. Therefore, the percentage increase is ₹720 ÷ ₹5,760 × 100 = 12.5%.
B) 10%: A 10% increase on ₹5,760 would be ₹576, not the actual increase of ₹720.
C) 11.25%: An 11.25% increase on ₹5,760 would be ₹648, which does not match the ₹720 rise.
D) 15%: A 15% increase on ₹5,760 would be ₹864, exceeding the actual increase.
Elimination: First find the increase, ₹6,480 − ₹5,760 = ₹720, and divide it by the original amount. The resulting 12.5% directly matches option A and eliminates the remaining percentages.
The ₹720 increase is 12.5% of the original ₹5,760, so option A is correct.
% increase = increase ÷ original × 100.
3
Food rises by ₹1,728 and utilities by ₹1,008. Savings fall from ₹7,200 to ₹4,464, which is 6.2% of ₹72,000.
A) 5.6%: This would mean savings of ₹4,032, but the two inflation increases leave ₹4,464.
B) 6%: This would mean savings of ₹4,320, which is lower than the correctly revised savings of ₹4,464.
C) 6.4%: This would mean savings of ₹4,608, which is higher than the amount left after both stated increases.
Inference Mapping: Map each price rise to its extra rupee cost: food adds ₹1,728 and utilities add ₹1,008. Deducting both from ₹7,200 savings leaves ₹4,464, which is 6.2% of income.
After absorbing ₹2,736 of additional expenditure, savings become ₹4,464 or 6.2% of ₹72,000, so option D is correct.
Extra costs come straight from savings.
4
Group I accounts for 47% of income, while Group II accounts for 43%. The difference is 4% of ₹72,000, or ₹2,880.
A) Group II is larger by ₹1,440: Group II is not larger; Group I accounts for 47% of income while Group II accounts for 43%.
B) Both groups are equal: The groups differ by 4 percentage points, so their expenditure totals are not equal.
D) Group I is larger by ₹4,320: ₹4,320 equals 6% of income, whereas the actual difference is only 4% or ₹2,880.
Elimination: Combine the percentages in each group: Group I is 47% and Group II is 43%. The 4% gap equals ₹2,880, leaving only option C.
Group I exceeds Group II by 4% of ₹72,000, which is ₹2,880, so option C is correct.
Compare group totals before comparing rupees.
5
Savings equal 10% of income. Therefore, 40% of the savings equals 40% of 10%, or 4% of monthly income.
A) 3.5%: This corresponds to 35% of the 10% savings share, which is the long-term investment allocation, not the 40% emergency-fund allocation.
C) 4.5%: The emergency contribution is 40% of savings, so it cannot equal 4.5% of income when total savings are only 10% of income.
D) 5%: This would require half of the 10% savings share to go to the emergency fund, but the stated allocation is 40%.
Inference Mapping: Treat the emergency fund as a percentage within a percentage: 40% of the 10% savings share equals 4% of total income. That maps directly to option B.
Forty per cent of a 10% savings share is 4% of total monthly income, making option B correct.
Nested %: multiply the shares.
6
Food and healthcare total 24% + 8% = 32%. Rent and utilities total 20% + 7% = 27%. Their ratio is 32:27.
B) 27:32: This reverses the required order; the question asks for food plus healthcare first and rent plus utilities second.
C) 8:7: 32:27 does not simplify to 8:7 because 27 is not divisible by 4.
D) 16:13: This is not equivalent to 32:27; halving 32 would require halving 27 to 13.5, not 13.
Elimination: Combine the relevant shares to get 32% and 27%, then preserve the order requested in the question. The ratio 32:27 is already in simplest form.
Food plus healthcare is 32% and rent plus utilities is 27%, so the required ratio is 32:27, option A.
Ratio order follows question order.
7
Urban employer coverage is 36,000 and rural employer coverage is 8,000. Their total is 44,000.
A) 40,000: This is below the combined employer coverage of 36,000 urban and 8,000 rural adults.
B) 42,000: Adding the two stated employer-covered groups gives 44,000, not 42,000.
C) 43,600: This does not equal the sum of the urban and rural employer-provided insurance counts.
Elimination: Use only the employer-provided counts from both areas and add 36,000 + 8,000. The total is 44,000, which uniquely matches option D.
Employer-provided coverage totals 44,000 adults across urban and rural areas, so option D is correct.
Total coverage = urban count + rural count.
8
If 30% equals 36,000, the complete urban population is 36,000 ÷ 0.30 = 1,20,000.
A) 1,00,000: If the urban population were 1,00,000, then 36,000 would represent 36%, not 30%.
B) 1,08,000: 36,000 out of 1,08,000 is one-third, approximately 33.33%, not 30%.
D) 1,30,000: 36,000 is less than 30% of 1,30,000, so this base is too large.
Inference Mapping: Map the known part to the unknown whole: if 30% equals 36,000, divide 36,000 by 0.30. This reconstructs the urban population as 1,20,000.
A count of 36,000 representing 30% implies a total urban population of 1,20,000, making option C correct.
Whole = part ÷ percentage.
9
Urban private and employer coverage totals 24,000 + 36,000 = 60,000. Rural public and employer coverage totals 33,600 + 8,000 = 41,600. The difference is 18,400.
B) 16,400: The correct combined totals are 60,000 and 41,600, whose difference is not 16,400.
C) 20,000: This overstates the gap between the two combined coverage groups by 1,600 adults.
D) 21,600: This also exceeds the actual difference obtained from the stated coverage counts.
Elimination: Combine urban private and employer coverage to get 60,000, then combine rural public and employer coverage to get 41,600. Their difference is 18,400, matching option A.
The required difference is 60,000 − 41,600 = 18,400 adults, so option A is correct.
Combine first, subtract second.
10
The total uninsured population is 30,000 + 32,000 = 62,000. Thus, 62,000 ÷ 2,00,000 × 100 = 31%.
A) 29%: 29% of 2,00,000 would be 58,000, not the stated combined uninsured count of 62,000.
C) 32%: 32% would correspond to 64,000 uninsured adults, which is 2,000 too high.
D) 34%: 34% would correspond to 68,000 uninsured adults, exceeding the actual total by 6,000.
Elimination: Add the uninsured counts, 30,000 + 32,000 = 62,000, and express this as a share of 2,00,000. The result is 31%, leaving option B.
There are 62,000 uninsured adults out of 2,00,000, equal to 31%, so option B is correct.
Overall % = combined count ÷ grand total.
11
The required ratio is 36,000:8,000. Dividing both numbers by 4,000 gives 9:2.
A) 4:1: 4:1 is equivalent to 32,000:8,000, not the actual 36,000:8,000 relationship.
B) 5:2: 5:2 does not preserve the proportional relationship between 36,000 and 8,000.
C) 18:5: 36,000:8,000 simplifies to 18:4 and then 9:2, not 18:5.
Elimination: Form the ratio in the requested order, 36,000:8,000, and divide both terms by 4,000. The simplified ratio is 9:2, which matches option D.
The employer-coverage counts simplify from 36,000:8,000 to 9:2, so option D is correct.
Divide both ratio terms by the same factor.
12
East’s car-owning households increase from 3,200 to 4,000. The increase of 800 is 25% of the original 3,200.
A) 20%: A 20% increase on the original 3,200 car-owning households would add only 640, not the actual 800.
B) 800%: The number 800 is the increase in households, not a percentage increase.
D) 5%: Five percentage points is the change in the ownership rate from 20% to 25%, but the question asks for the percentage increase in the number of car-owning households.
Inference Mapping: Map the rate change to counts: East rises from 3,200 to 4,000 car-owning households, an increase of 800. Dividing 800 by the original 3,200 gives 25%.
An increase of 800 from an original 3,200 is 25%, so option C is correct.
Percentage-point change is not percentage increase.
13
Ten per cent of 10,800 is 1,080. Adding this to the existing 3,600 households gives 4,680.
B) 4,320: This adds only 720 households to the original 3,600, but 10% of South’s 10,800 two-wheeler households is 1,080.
C) 5,040: This would require an increase of 1,440 households, greater than the stated 10% shift.
D) 4,800: This would require 1,200 households to shift, which is not 10% of 10,800.
Inference Mapping: Translate the 10% shift into a count: 10% of 10,800 is 1,080. Move that count into the no-private-vehicle category by adding it to the existing 3,600.
South’s no-private-vehicle count becomes 3,600 + 1,080 = 4,680, so option A is correct.
Shift means subtract there, add here.
14
The car difference is 7,000 − 3,200 = 3,800. The two-wheeler difference is 10,800 − 8,000 = 2,800. The first is larger by 1,000.
A) 800 households: The two differences are 3,800 and 2,800, leaving a gap of 1,000 rather than 800.
C) 1,200 households: This is 200 more than the actual excess of the first difference over the second.
D) 1,400 households: This overstates the gap between the two calculated differences by 400 households.
Elimination: Calculate each pairwise difference separately: West–East cars = 3,800 and South–North two-wheelers = 2,800. Then subtract the second difference from the first to get 1,000.
The first difference exceeds the second by 3,800 − 2,800 = 1,000 households, making option B correct.
Difference of differences: calculate twice, subtract once.
15
There were 14,400 bicycle-owning households out of 80,000. Therefore, 14,400 ÷ 80,000 × 100 = 18%.
A) 16%: 16% of 80,000 would be 12,800 bicycle-owning households, below the stated total of 14,400.
B) 17.5%: 17.5% of 80,000 would be 14,000, not 14,400.
C) 18.5%: 18.5% of 80,000 would be 14,800, which is higher than the stated bicycle total.
Elimination: Divide the regional bicycle total of 14,400 by the full sample of 80,000 and multiply by 100. The result is exactly 18%, matching option D.
Bicycle-owning households make up 14,400 ÷ 80,000 = 18% of the sample, so option D is correct.
Category share = category total ÷ overall total.
16
The ratio is 7,000:3,200. Dividing both terms by 200 gives 35:16.
A) 16:35: This is the reverse of the requested West-to-East order.
B) 7:4: 7:4 would correspond to 7,000:4,000, but East has 3,200 car-owning households.
D) 21:10: This is not proportionally equivalent to 7,000:3,200.
Elimination: Write the ratio in the required order as 7,000:3,200 and divide both terms by 200. This gives 35:16, uniquely matching option C.
West-to-East car ownership simplifies from 7,000:3,200 to 35:16, so option C is correct.
Write first-mentioned quantity first.
17
The four-zone total is 32,400. Dividing by four gives an average of 8,100 households.
B) 8,000: Multiplying this by four zones gives only 32,000, below the stated two-wheeler total of 32,400.
C) 8,200: Four times 8,200 is 32,800, which exceeds the stated total.
D) 8,400: Four times 8,400 is 33,600, also above the four-zone total.
Elimination: Use the stated four-zone total of 32,400 and divide by the four zones. The quotient is 8,100, which matches option A.
The average is 32,400 ÷ 4 = 8,100 two-wheeler-owning households per zone, so option A is correct.
Average = total ÷ number of groups.
18
The additional group contributes 2,000 car-owning households. The new total is 24,200 out of 90,000, which is approximately 26.89%.
A) 26.67%: This is lower than the share obtained after adding 2,000 new car-owning households to the existing 22,200.
C) 27.25%: This overstates the car share of the expanded 90,000-household sample.
D) 27.75%: This is still higher than the percentage produced by the revised car total of 24,200.
Inference Mapping: Map the added group into counts first: 20% of 10,000 adds 2,000 car-owning households. The revised car total is 24,200 and the revised sample is 90,000, giving approximately 26.89%.
With 24,200 car-owning households out of 90,000, the expanded-sample share is approximately 26.89%, so option B is correct.
For new shares, update numerator and denominator.
