Q1 In how many years will RS 7320 amount to RS 13,176 at the rate of 8% p.a.

Q2 What sum of money will yield an interest of RS 4137 in 6 years at the rate of 7% p.a.

Question

Q1 In how many years will RS 7320 amount to RS 13,176 at the
rate of 8% p a
Q2 What sum of money will yield an interest of RS 4137 in 6
years at the rate of 7% p a

Sanchita · Accepted Answer

1)Sum or Principle = Rs 7,320, Amount = Rs 13,176
SI = AMOUNT - SUM= Rs (13,176 -7320) = Rs 5856
Rate% pa = 8%
By the formulae,
Time = (SI*100)/(Principle*Rate)
= (5856*100)/(7320*8)
= 585600/58560
= 10
Hence, in 10 years Rs 7,320 will amount to Rs 13,1796
2) SI = Rs 4137
Time = 6 years
Rate% pa = 7
By the formulae,
Principle or sum = (SI *100)/(Time*Rate)
= (4137*100)/(6*7)
= 413700/42
= 9850
Hence the required sum of money is Rs 9850

Q1 In how many years will RS 7320 amount to RS 13,176 at the rate of 8% p.a. Q2 What sum of money will yield an interest of RS 4137 in 6 years at the rate of 7% p.a.

Q1 In how many years will RS 7320 amount to RS 13,176 at the rate of 8% p.a.

Q2 What sum of money will yield an interest of RS 4137 in 6 years at the rate of 7% p.a.