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- The sum required to earn a monthly interest of Rs 400 at 10 % per annum at simple interest is
Question 1:
The sum required to earn a monthly interest of Rs 400 at 10 % per annum at simple interest is A. Rs 2000
B. Rs 12000
C. Rs 24000
D. Rs 48000
Feedback Total interest needed in a year = Rs 400 × 12= Rs 4800
Principal = (100 × SI)/R × T
where, R = Rate T = Time SI= Simple Interest
Principal = (100 × SI)/R × T
where, R = Rate T = Time SI= Simple Interest
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