Question

If the amounts of two consecutive years on a sum of money are in ratio 20:21, find the rate percent.

Answer 1

I give u an example

if u not understand see PIC

Q if the amounts of two consecutive years on a sum of money are in the ratio 20:21 find : the rate of interest and the compound interest on 48000 for 3 years at this rate.

Answer. Suppose P be the principal and r be the rate of interest.
Given the ratio of two consecutive years is 20:21
So, we have;
P1+r100P1+r1002 = 2021⇒11+r100 = 2021⇒1+r100 = 2120⇒r100 = 2120-1⇒r100 = 120⇒r = 5%
Therefore rate of interest is 5%.
2)  P = 48000, r = 5% and t = 3
So the amount accumulated after 3 years is given by;
Amount = P1+r100n = 480001+51003 = 48000×2120×2120×2120 = 55566
Therefore the amount after 3 years is Rs.55566.
Then compound interest = Rs.55566 - Rs.48000 = Rs.7566

I hope u understand dear

Answer 2

hello friends
hey your answer dude
plz mark the brainliest
dfgh ☺️☺️☺️