Question

Please answer this question, this is important. I want step-by-step answer. If you can do it in a copy and send the picture clearly I will mark you brainlist. ​

Answer 1

Step-by-step explanation:

1.

The Principal Amount is Rs. 1250 and the final amount after one year is Rs. 1950. Hence the interest earned

I = Final - principal amount

= 1950 - 1250

= Rs. 700

Now Interest I = P x R x T /100

where

I = interest = 700

P = Principal Amount = 1250

R = Rate of interest = 16%

T = time = to find

Therefore, from data

700 = 1250 x 16 x T /100

700 = 20,000 x T /100

700 = 200 x T

T = 700/200

= 3.5 years.

Therefore time = 3.5 years.

2.

Principal Amount = Rs. 6540

Final Amount = Rs. 8447.5

Interest earned = Rs. (8447.5 - 6540)

= Rs.1907.5

Now, I = P x R x T /100

1907.5 = 6540 x 12.5 x T /100

1907.5 = 81,750 x T /100

T = 1907.5 x 100 / 81750

T = 2.33 years

= 2 years and 4 months.