Question

At the rate of 8% simple annual interest, an amount becomes ₹ 819 in 3 years and 3 months. What was the original amount?​

Answer 1

Answer:

let the sum or principal be x

SI = 8/100×13/4×x [3+3/12= 13/4yrs]

SI = 26x/100

amount= x+26x/100

amount= 126x/100

819= 126x/100

x = Rs 650

Answer 2

Given :-

At the rate of 8% simple annual interest, an amount becomes ₹ 819 in 3 years and 3 months. What was the original amount ?

To find :-

• Principal

Solution :-

• Rate of interest = 8 %
• Time Taken = 3 years 3 months or you can say 3 and 1/4 year
• Amount = ₹ 819

Let Principal be x

SI = PRT / 100

[ substituting the values ]

→ x × 8 × 3¼ / 100 = 819 - x

→ 8x × 13 / 4 × 100 = 819 - x

→ 13 / 50x = 819 - x

→ 13 / 50x + x = 819

→ 63 / 50 x = 819

→ x = 819 × 50 / 63

→ x = 650

So, principal is ₹ 650