Question

What sum will amout to Rs.2160 in 4 year at 5% p.a. s.i.?

Answer 1

Let principal amount be X.

SI =PRT/100

SI= Amount -Principal=2160-X

So 2160-X=X×5×4/100

2160-X=X/5

10800-5X=X

10800-5X-X=0

6X=10800

X=10800÷6=1800 Rs

So ans is 1800 Rs

Answer 2

Answer:

Step-by-step explanation:si=p*t*r/100

2160=X*4**5/100

2160*100/4*5=X

X= 10800