Question

2400 amounts to rupees 2976 in 3 years at a certain rate of simple interest what sum of money will amount to rupees 5016 in 4 years at same rate of simple interest​

Answer 1

Answer:

3800

Step-by-step explanation:

first case:-

p=2400

a=2976

r=r

t=3yrs

a=p+s.i

s.i=2976-2400

=576

r=(s.i×100)/(p×t)

=(576×100)/(2400×3)%

=8%

second case:-

a=5016

t=4 yrs

rate of first case=rate of second case(given)

r=8%

let p be x

a=p+s.i

s.i=(p×t×r)/100

(5016-x)=(x×4×8)/100

5016-x=32x/100

(5016-x)100=32x

501600-100x=32x

501600=32x+100x

501600=132x

x=501600/132

x=3800

the sum=x=>3800.