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Arithmetic & Mental Ability – KLEE 2026 3-Year LLB

Click an option to check your answer, or click View Answer. Exam held on 28 June 2026 · Paper code 18/2026/OL.

64.

The smallest prime number is

  1. A. 1
  2. B. 2
  3. C. 3
  4. D. 5

Answer: Option B

Explanation:

A prime number has exactly two factors. 1 has only one factor, so it is not prime. 2 (factors 1 and 2) is the smallest prime.

65.

A property is bought for Rs.75450. It is expected that the value of the property will appreciate 25% in two years. The value of the property at the end of two years will be

  1. A. Rs .94312.50
  2. B. Rs. 94322.50
  3. C. Rs. 93312.50
  4. D. Rs. 94302.50

Answer: Option A

Explanation:

Value after 25% appreciation = 75450 × 1.25 = Rs. 94312.50.

66.

The ratio of civil cases to criminal cases in a court is 4 : 7. If there are 420 civil cases, then the total number of cases in the court is

  1. A. 1455
  2. B. 1155
  3. C. 1255
  4. D. 1055

Answer: Option B

Explanation:

Civil : Criminal = 4 : 7. 4 parts = 420, so 1 part = 105. Total = 11 parts = 11 × 105 = 1155.

67.

The sum 15+ 30+ 45+.....+ 900 is equal to

  1. A. 27460
  2. B. 37450
  3. C. 27450
  4. D. 27950

Answer: Option C

Explanation:

15 + 30 + … + 900 = 15 × (1 + 2 + … + 60) = 15 × (60 × 61 ÷ 2) = 15 × 1830 = 27450.

68.

The ratio of the present ages of X and Y is 4 : 9. After 8 years, the ratio will be 6 : 11. The present age of Y is

  1. A. 45 years
  2. B. 54 years
  3. C. 38 years
  4. D. 36 years

Answer: Option D

Explanation:

Let ages be 4x and 9x. (4x + 8)/(9x + 8) = 6/11 → 44x + 88 = 54x + 48 → x = 4. Y = 9 × 4 = 36 years.

69.

Father is 5 times as old as his son. The square of the sum of their ages is 5184. The age of the father is

  1. A. 67 years
  2. B. 60 years
  3. C. 66 years
  4. D. 70 years

Answer: Option B

Explanation:

Sum of ages = √5184 = 72. Son = x, father = 5x → 6x = 72 → x = 12. Father = 60 years.

70.

In a group of 200 Boys, 80 play Cricket, 60 play Chess and 35 play both Cricket and Chess. Number of boys play neither Cricket nor Chess is

  1. A. 95
  2. B. 90
  3. C. 105
  4. D. 85

Answer: Option A

Explanation:

Play at least one = 80 + 60 − 35 = 105. Neither = 200 − 105 = 95.

71.

12 Men can complete a work in 20 days. Working after 5 days, 6 men left. In how many more days will the remaining work be completed by the remaining 6 Men?

  1. A. 35 days
  2. B. 30 days
  3. C. 25 days
  4. D. 32 days

Answer: Option B

Explanation:

Total work = 12 × 20 = 240 man-days. Done in 5 days = 12 × 5 = 60. Remaining 180 man-days ÷ 6 men = 30 days.

72.

A trader marks an article 40% above cost price and gives two successive discounts of 10% and 5%. If the selling price is Rs.3591, the cost price of the article is

  1. A. Rs. 3000
  2. B. Rs. 4000
  3. C. Rs. 2000
  4. D. Rs. 5000

Answer: Option A

Explanation:

SP = CP × 1.40 × 0.90 × 0.95 = 1.197 × CP. 1.197 × CP = 3591 → CP = Rs. 3000.

73.

The sides of a triangle are 9cm, 40cm and 41cm. The area of the triangle is

  1. A. 180 sq.cm
  2. B. 184 sq.cm
  3. C. 190 sq.cm
  4. D. 240 sq.cm

Answer: Option A

Explanation:

9² + 40² = 81 + 1600 = 1681 = 41², so it is a right-angled triangle. Area = ½ × 9 × 40 = 180 sq.cm.