Simple Interest Practice Test 1

Question : 39 of 40

Marks: +1, -0

A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 36250 more is lent but at the rate twice the former. At the end of year, Rs. 33.50 is earned as interest from both the loans. Find the original rate of interest.

6%
5%
4.5%
3.46%

Validate

Solution:

Here,

{725×R×1}/100+{362.50×2R×4}/{100×12}=33.50

⇒{2175R+725R}/300=33.50

∴R={3×3350}/2900=3.46%

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