Selected MCQ

Current Question
Geometry comes from Greek words meaning ____.
  • A. Earth measure
  • B. Line measure
  • C. Angle measure
  • D. Space measure
Correct Answer: A
Explanation:
Geo = earth, metry = measurement.
Related Question 1
Three dice are thrown. Find the number of outcomes where the sum is 10.
  • A. 36
  • B. 81
  • C. 91
  • D. 116
Correct Answer: C
Explanation:
Count valid combinations.
Related Question 2
A sum becomes triple in 3 years at compound interest. In how many years will it become 9 times?
  • A. 18
  • B. 12
  • C. 9
  • D. 6
Correct Answer: D
Explanation:
Growth is exponential → 6 years.
Related Question 3
If radius becomes one-third but volume remains constant, length changes by ____.
  • A. 1 time
  • B. 3 times
  • C. 6 times
  • D. 9 times
Correct Answer: D
Explanation:
Volume constant → length ∝ 1/r².
Related Question 4
If a sum becomes Rs. 1210 in 2 years at CI 10%, principal is ____.
  • A. Rs. 900
  • B. Rs. 1000
  • C. Rs. 1100
  • D. Rs. 1200
Correct Answer: B
Explanation:
Reverse calculation gives 1000.
Related Question 5
If a number is increased by 50% and becomes 75, the original number is ____.
  • A. 40
  • B. 45
  • C. 50
  • D. 60
Correct Answer: C
Explanation:
x × 1.5 = 75 → x = 50.