Question

24. In two years, at the rate of 5% p.a., the difference
of compound and simple interest is 25. What is the
principal?
1) 11,000 2) 10,050 3) 10,500
4) 10,000 5)None of these​

Answer 1

to find the principal we use the given formula

$si \times 100 \\ time \times rate$

so here

si is simple interest -25

time will be -2years

rate -5

now solve

$25 \times 100 \\ 2 \times 5$

so

25 will be cut by 5 at 5times

100 will be cut by 2 and it will give 50

so ans is

1by10

hope it helps you

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