Selected MCQ

Current Question
If 5 workers earn Rs. 500 in 10 days, 10 workers will earn ____.in 10 days?
  • A. Rs. 500
  • B. Rs. 1000
  • C. Rs. 1500
  • D. Rs. 2000
Correct Answer: B
Explanation:
Double workers → double earnings.
Related Question 1
If 9 workers can complete a job in 6 days, how many days will 3 workers take?
  • A. 12
  • B. 15
  • C. 18
  • D. 20
Correct Answer: C
Explanation:
Work = 54 ⇒ 54/3 = 18.
Related Question 2
If 8 workers can complete a job in 15 days, how many workers are needed to complete it in 10 days?
  • A. 10
  • B. 12
  • C. 14
  • D. 16
Correct Answer: B
Explanation:
Work = 8×15 = 120 ⇒ workers = 120/10 = 12.
Related Question 3
12 children take 16 days to finish work. Time for the same work with a different number is ____.
  • A. 3 days
  • B. 4 days
  • C. 6 days
  • D. 8 days
Correct Answer: C
Explanation:
Work is inversely proportional.
Related Question 4
A petrol tank lasts 10 days. If consumption patterns change, how long will it last?
  • A. 5 days
  • B. 6 days
  • C. 7 days
  • D. 8 days
Correct Answer: D
Explanation:
Adjusting the consumption rate leads to a duration of 8 days.
Related Question 5
If a sum earns Rs. 500 as simple interest in 5 years at 5%, principal is ____.
  • A. Rs. 2000
  • B. Rs. 2500
  • C. Rs. 3000
  • D. Rs. 1500
Correct Answer: A
Explanation:
P = (SI×100)/(RT) = 2000.