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RRB NTPC Mains or Stage 2 Model Paper 5 with solutions

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Question : 3 of 120

Marks: +1, -0

What is 40% of 50% of

\frac{3}{4}

of 3200 ?

480
560
420
600

Solution:

Concept:

In such problems, “of” means multiplication, so multiply the percentages and fraction in sequence.

Explanation:

First, find

\frac{3}{4}

of

3200

:

\frac{3}{4} \times 3200 = 2400

.

Next, find

50\%

of

2400

:

\frac{50}{100} \times 2400 = 1200

.

Finally, find

40\%

of

1200

:

\frac{40}{100} \times 1200 = 480

.

Answer:

\boxed{480}

(Option A)

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