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CTET Paper II (Mathematics and Science) July 2013 Solved Paper

Question : 38 of 150

Marks: +1, -0

40% of (100 - 20% of 300) is equal to

Solution:

Concept:

Solve using order of operations: first the innermost bracket, then subtraction, then the outer percentage.

Explanation:

Calculate 20% of 300:

\frac{20}{100} \times 300 = 60

Subtract from 100:

100 - 60 = 40

Now find 40% of the result:

\frac{40}{100} \times 40 = 16

Answer:

Option A. 16

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