Math, asked by amrafatima, 5 hours ago

A certain amount was deposited into the bank account having intrest rate of 5%. if the total amount after 4year was ₹1500,how much was the amount deposited initially?for the same initial amount,how should the intrest rate increase such that the simple interest would be amount₹400?

Answers

Answered by s1239ankit9875
1

Answer:

Let the amount be = x

Now with a interest rate of 5% the amount becomes after 4 years = rs 400

Therefore

x+x*5*4/100= 1500. (Here we have add x as amount = principal +interest here principal = x and interest is prt/ 100)

=x+x/5=1500

=5x+x/5= 1500

=6x/5=1500

=1500*5/6= x

=x= rs1250

Therefore amount was rs 1200 which gained to RS 1500 after 4years at 5 percent interest.

Interest = rs 400 to initial amount

Let the rate be y

Therefore again by the same formula we derives

1200*4*y/100= 400

=48y= 400

y = 400/48

y= 25/3

y= 8.3 %

Similar questions