Simple Interest Practice Test 4

Question : 7 of 26

Marks: +1, -0

The rate of interest on an amount borrowed by Sakshi was 3% per annum for the first two years, then 5% per annum for the next 3 years and 10% per annum for the next 5 years. Find the amount borrowed by him if the simple interest was Rs 1,278 for 10 years.

Rs 1,950
Rs 800
Rs 1,800
Rs 1,700
Rs 1,000

Validate

Solution:

Let the principal be Rs P.
Then,

SI=({P×3×2}/100)+({P×5×3}/100)+({P×10×5}/100)

1278={6P+15P+50P}/100

1,27,800 = 71P

1,800 = P

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