Question

ravi tooks rs 8000 from ram at 10% annum and repaid Rs 11200 afyer a few years find out the time period involved​

Answer 1

Answer:

Ravi took rs 8000 from ram at 10% annum and repaid Rs 11200 after 4  years.

Step-by-step explanation:

Given:   Principal (p) = Rs 8000

Rate (R) = 10%

Amount = Rs 11200

Find : Time period (T)

Formula: Amount = Principal + Interest

Interest $= \frac{PTR}{100}$

Step 1:

First find interest

Amount = Principal + Interest

Interest = Amount - Principal

= Rs(11200-8000) = Rs 3200

Step 2:

Find Time period (T)

$Interest = \frac{PTR}{100}\\3200 = \frac{8000 \times T \times 10}{100}\\3200 = \frac{80000T }{100}\\3200 = 800T$

T = 3200 ÷ 800

T = 4years