Selected MCQ

Current Question
A number is increased by 25% and then by 20%. What is the net increase?
  • A. 45%
  • B. 50%
  • C. 55%
  • D. 60%
Correct Answer: B
Explanation:
1.25 × 1.2 = 1.5 → 50%.
Related Question 1
The smallest number which when increased by 1 is divisible by 12, 18, 24 and 32 is ____.
  • A. 1439
  • B. 1440
  • C. 1459
  • D. 1449
Correct Answer: A
Explanation:
LCM − 1 = required number.
Related Question 2
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.
Related Question 3
If a number is increased by 15% and becomes 230, the original number is ____.
  • A. 180
  • B. 200
  • C. 210
  • D. 220
Correct Answer: B
Explanation:
x × 1.15 = 230 → x = 200.
Related Question 4
A number when increased by 25% becomes 125. The number is ____.
  • A. 75
  • B. 80
  • C. 90
  • D. 100
Correct Answer: D
Explanation:
Let x × 1.25 = 125 → x = 100.
Related Question 5
If a number is increased by 50% and becomes 150, what was the original number?
  • A. 80
  • B. 90
  • C. 100
  • D. 120
Correct Answer: C
Explanation:
150% = 150 ⇒ original = 100.