Q169
ArithmeticSimple & Compound Interest
In how many years a sum of ₹ 2,500 at 18% simple interest per annum will earn same interest at ₹ 1,500 earns at 10% p.a. in 12 years?
- a.3 years
- b.4 years
- c.5 years
- d.6 years
Answer: (B) 4 years
₹ 1,500 at 10% for 12 years earns 1500 × 10 × 12 ÷ 100 = ₹ 1,800. ₹ 2,500 at 18% earns ₹ 450 a year, so it needs 1800 ÷ 450 = 4 years. 3 years would give only ₹ 1,350.