Question

A man deposited rs 400 for 2 years,rs 550 for 4 years and rs 1200 for 6 years.He received rs 1020 as the total simple Interest.What is the rate of per annum?​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

A person deposited 400 Rs. for 2 years, 550 Rs. for 4 years and 1200 Rs. for 6 years. He received the total simple interest of 1020 Rs. The rate of interest per annum is :

[A]5%

[B]10%

[C]15%

[D]20%

10%

Let the rate of interest be R per cent per annum.

\therefore \frac{400\times 2\times R}{100}+\frac{500\times 4\times R}{100} + \frac{1200\times 6\times R}{100} = 1020

=> 8R+22R+72R = 1020

=> 102R = 1020

=> R = \frac{1020}{102} = 10\%

Step-by-step explanation:

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