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Fraction as an Operator 'Of'

25 % of 50 % ...

Question

Question 20

$\frac{25 % o f 50 % o f 100 %}{25 \times 50}$ is equal to
(a) 1.1 %
(b) 0.1 %
(c) 0.01 %
(d) 1 %

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Solution

We have, $\frac{25 % o f 50 % o f 100 %}{25 \times 50} = \frac{25}{100} \times \frac{50}{100} \times \frac{100}{100} \times \frac{1}{25 \times 50} = \frac{125000}{1250 \times 100 \times 100 \times 100} = \frac{1}{10000} = 0.0001$
In percentage, $0.0001 \times 100 % = 0.01 %$

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Fraction as an Operator 'Of'

Standard VII Mathematics

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