Question

find the principal that will yield a compound interest of rupees 1,632 in 2 years at 4 percentage rate of interest per annum

Answer 1

so imagine the principal is x rupees
so(according to the question)

x(1+4/100)^2-x= 1632
or, x[(1+1/25)^2-1]=1632
or, x × 51/625=1632
or, x = 1632×625/51
or, x= 20000 rupees

so the principal is 20000 Rs.(Answer)
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