Arithmetic & Mental Ability – KLEE 2024 3-Year LLB
Click an option to check your answer, or click View Answer. Exam held on 18 August 2024 · Paper code 15/2024/OL.
The product of three consecutive positive integers is 2184. Then the sum of the three positive numbers is
- A. 39
- B. 49
- C. 29
- D. 59
Answer: Option A
Explanation:
12 × 13 × 14 = 2184, so the integers are 12, 13 and 14. Sum = 39.
A gardener wants to arrange 1296 plants in rows and columns. If the number of rows and columns of the arrangement is equal, then the number of rows in the arrangement of plants is
- A. 43
- B. 44
- C. 34
- D. 36
Answer: Option D
Explanation:
Rows = columns, so rows = √1296 = 36.
A person bought an item for Rs.21000. He sold it for Rs.18900. The loss percentage is
- A. 5%
- B. 15%
- C. 8%
- D. 10%
Answer: Option D
Explanation:
Loss = 21000 − 18900 = 2100. Loss % = 2100 ÷ 21000 × 100 = 10%.
The very next number in the sequence 5, 10, 40, 320, … is
- A. 5020
- B. 5120
- C. 6120
- D. 5240
Answer: Option B
Explanation:
Each term is multiplied by 2, 4, 8 … so the next multiplier is 16: 320 × 16 = 5120.
The sum of the numbers 12, 24, 36, 48, …… , 120 is
- A. 660
- B. 720
- C. 680
- D. 740
Answer: Option A
Explanation:
12 + 24 + … + 120 = 12 × (1 + 2 + … + 10) = 12 × 55 = 660.
The average score of a cricketer in his 10 innings is 45 runs. If he has scored 70 runs in another 3 innings, then the average score of the player is
- A. 38 runs
- B. 40 runs
- C. 42 runs
- D. 44 runs
Answer: Option B
Explanation:
Runs in 10 innings = 10 × 45 = 450. Adding 70 runs from 3 more innings: 520 runs in 13 innings. Average = 520 ÷ 13 = 40.
X can do a work in 10 days. X and Y both together can do the same work in 6 days. Then Y alone can do the work in
- A. 14 days
- B. 15 days
- C. 16 days
- D. 18 days
Answer: Option B
Explanation:
Y's one-day work = 1/6 − 1/10 = 5/30 − 3/30 = 1/15, so Y alone takes 15 days.
Rs. 24000 has to be shared between A and B in the ratio 7 : 5. Then B will get
- A. Rs.9000
- B. Rs.10000
- C. Rs.8000
- D. Rs.7800
Answer: Option B
Explanation:
B's share = 5/12 × 24000 = Rs. 10000.
The smallest number among the fractions 14/15 , 13/15, 11/15 , 9/15 is
- A. 14/15
- B. 11/15
- C. 9/15
- D. 13/15
Answer: Option C
Explanation:
All fractions have the same denominator, so the one with the smallest numerator is smallest: 9/15.
A can do a work in 8 days and B can do the same work in 16 days. If A, B and C can together do the same work in 4 days, then C can do the work in
- A. 10 days
- B. 4 days
- C. 8 days
- D. 16 days
Answer: Option D
Explanation:
C's one-day work = 1/4 − 1/8 − 1/16 = 4/16 − 2/16 − 1/16 = 1/16, so C alone takes 16 days.