Question

in how many years does the sum of 1200 became 1800 at the rate of simple intrest of 5% per annum

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Answer 1

Answer:

In 10 years the sum of Rs 1200 became Rs 1800 at the rate of simple interest of 5% per annum.

Step-by-step explanation:

Given that:

Sum = Rs 1200

Amount = Rs 1800

Rate of interest = 5% per annum

To Find:

Time

Formula used:

SI = A - P

SI = (P × R × T)/100

Where,

SI = Simple interest

A = Amount

P = Sum/Principal

R = Rate of interest

T = Time

First we have to find simple interest:

⇒ SI = A - P

⇒ SI = Rs 1800 - Rs 1200

⇒ SI = Rs 600

∴ Simple interest = Rs 600

Now finding the time:

⇒ SI = (P × R × T)/100

⇒ 600 = (1200 × 5 × T)/100

⇒ 600 = 6000T/100

⇒ 600 = 60T

⇒ T = 600/60

⇒ T = 10

∴ Time = 10 years

Answer 2

Answer:

10 years

It takes 10 years for sum of ₹ 1200 become ₹ 1800 at the rate of simple interest of 5% per annum.