Questions & Answers: "Unitary Method and Simple Interest"

Complete guide to "Unitary Method and Simple Interest" for Math students. Below you will find important questions and model answers to help you prepare.

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Rs. 9700 are invested in the bank with simple interest at the rate of 5 p.c.p.a. To get the same amount that will be received in 4 years in 2.5 years only, by how much should the rate of interest needs to be increased?

Options

❌

✅

❌

2.5%

Instead of investing Rs. 3000 with simple interest for two and half years, if Rs. 4000 are invested with simple interest for two years, interest of Rs. 25 is earned more. What is the rate of interest?

Options

❌

10 %

❌

6 %

❌

4 %

✅

5 %

A vehicle covers a distance of 42 km in one hour. Then how much distance will it cover at the same speed in 20 minutes?

Options

❌

21 km

❌

840 m.

✅

14 km

❌

20 km

Santoshrao deposited Rs. 2,10,000 in bank for 5 years at simple interest. After the end of period, he received Rs. 3,36,000 from the bank. Then what was the rate of interest?

Options

❌

11 %

❌

10 %

✅

12 %

❌

14 %