Question

10% of 15% of 20% of Rs500 is
A. 0.50
B. 3.50
C. 1.50
D. 2.50

Answer 1

Hint: Percentages are used like fractions and decimals, as ways to describe parts of a whole . Calculate the percentage in such questions directly by multiplying 10% , 15% , 20 % by the given amount of money i.e Rs 500.

Complete step-by-step answer:
In this problem we have to find 10% of 15% of 20% of Rs500.
(‘of’ translates to multiplication)
We will get,

$\Rightarrow$ 10% of 15% of 20% of Rs500 = $\dfrac{{10}}{{100}}of\dfrac{{15}}{{100}}of\dfrac{{20}}{{100}}of500$

$ \Rightarrow \dfrac{{10}}{{100}} \times \dfrac{{15}}{{100}} \times \dfrac{{20}}{{100}} \times 500$
$ \Rightarrow \dfrac{{15 \times 2 \times 5}}{{100}} = \dfrac{{150}}{{100}} = 1.5$
10% of 15% of 20% of Rs500 is Rs 1.5

Note: In such types of questions it is not required to calculate the percentages individually step by step. Multiply the percentages directly with the total amount. Remember to do step by step calculations for accuracy.