Selected MCQ

Current Question
Rs. 725 is lent at a certain rate. After 8 months, Rs. 362.50 more is lent at double the rate. Find the rate.
  • A. 3.46%
  • B. 4.5%
  • C. 5%
  • D. 6%
Correct Answer: A
Explanation:
Equating interests gives a rate ≈ 3.46%.
Related Question 1
True discount on Rs. 2562 due in 4 months is Rs. 122. Find rate.
  • A. 12%
  • B. 13%
  • C. 15%
  • D. 14%
Correct Answer: C
Explanation:
Solve using the TD formula.
Related Question 2
The simple interest and true discount on a certain sum for a given time at a given rate are Rs. 85 and Rs. 80, respectively. Find the sum.
  • A. Rs. 1800
  • B. Rs. 1450
  • C. Rs. 1360
  • D. Rs. 6800
Correct Answer: C
Explanation:
Using the relation between SI and TD, the principal is Rs. 1360.
Related Question 3
In a fort, food lasts 2 months. After half a month, more people join. How long will food last?
  • A. 1.5 months
  • B. 40 days
  • C. 2 months
  • D. 50 days
Correct Answer: D
Explanation:
Adjusting the rate gives 50 days.
Related Question 4
A and B invest Rs. 8000 each. After 4 months, B withdraws half. Find the profit ratio.
  • A. 18:11
  • B. 22:13
  • C. 23:12
  • D. 11:9
Correct Answer: A
Explanation:
Time-weighted capital gives a ratio of 18:11.
Related Question 5
Khadija’s age after 1 year is twice her age 10 years ago. Find the present age.
  • A. 19
  • B. 20
  • C. 21
  • D. 22
Correct Answer: C
Explanation:
Solve Equation.