Question:
Find:
(i) 22% of 120
(ii) 25% of Rs 1000
(iii) 25% of 10 kg
(iv) 16.5% of 5000 metre
(v) 135% of 80 cm
(vi) 2.5% of 10000 ml
Solution:
(i) $22 \%$ of $120=\frac{22}{100} \times 120$
$=26.4$
(ii) $25 \%$ of $1000=\frac{25}{100} \times 1000$
$=250$
(iii) $25 \%$ of $10 \mathrm{~kg}=\frac{25}{100} \times 10 \mathrm{~kg}$
$=\frac{25}{10} \mathrm{~kg}=\frac{5}{2} \mathrm{~kg}$
$=2.5 \mathrm{~kg}$
(iv) $16.5 \%$ of $5000 \mathrm{~m}=\frac{16.5}{100} \times 5000 \mathrm{~m}$
$=16.5 \times 50 \mathrm{~m}$
$=825 \mathrm{~m}$
(v) $135 \%$ of $80 \mathrm{~cm}=\frac{135}{100} \times 80 \mathrm{~cm}$
$=\frac{135 \times 8}{10} \mathrm{~cm}$
$=108 \mathrm{~cm}=1.08 \mathrm{~m}$
(vi) $2.5 \%$ of $10000 \mathrm{ml}=\frac{2.5}{100} \times 10000 \mathrm{ml}$
$=250 \mathrm{ml}$