Simple Interest Practice Test 3

Question : 40 of 40

Marks: +1, -0

An amount of Rs. 100000 is invested in two types of shares. The first yield an interest of 9% p.a. and the second 11% p.a. If the total interest at the end of one year is

9 3/ 4 %

, then the total interest at 9% was:

Rs. 82,500
Rs. 72,500
Rs. 62,500
Rs. 52,500

Validate

Solution:

The amount Rs. x and Rs (100000 – x) are invested at 9% and 11% respectively; then,

{x×9×1}/100+{(100000-x)×11×1}/100={100000×39×1}/{100×4}

⇒ 9x + 1100000 – 11x = 9,75000
⇒ 2x = 1,25,000
∴ x =

125000/2

= Rs. 62,500

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