Selected MCQ

Current Question
12 inches equals how many centimeters?
  • A. 30.48
  • B. 29
  • C. 34.12
  • D. 24
Correct Answer: A
Explanation:
1 inch = 2.54 cm.
Related Question 1
Three numbers: 5/7 of the first equals 48% of the second, and the second is 1/9 of the third. Find first.
  • A. 168
  • B. 84
  • C. 42
  • D. 21
Correct Answer: D
Explanation:
Solve the proportion.
Related Question 2
In a group of 30 people, if everyone shakes hands once, how many handshakes?
  • A. 870
  • B. 435
  • C. 30!
  • D. 29! +1
Correct Answer: B
Explanation:
n(n−1)/2.
Related Question 3
Sum of two numbers is 2490. 6.5% of one equals 8.5% of the other. Find numbeRs.
  • A. 989,1501
  • B. 1011,1479
  • C. 1401,1089
  • D. 1411,1079
Correct Answer: D
Explanation:
Solve the ratio Equation.
Related Question 4
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 5
A circular wheel of radius 1.75 m makes how many revolutions in 11 km?
  • A. 1000
  • B. 2000
  • C. 3000
  • D. 4000
Correct Answer: A
Explanation:
Revolutions = distance/circumference.