Question

in how many years will 150 double itsself at 4% simple intrest

Answer 1

150*4% =6
150/6= 25
for one year 6
for 25 years 150

Answer 2

Principal amount = 150

Find final amount:

Final Amount = 150 x 2 = 300

Find the total interest:

Interest earned = 300 - 150 = 150

Find interest per year:

4% x 150 = 0.04 x 150 = ₹6

Number of years needed:

₹ 150 ÷ ₹6 = 25 years

Answer: 25 years is needed to double the amount.