Question:
Tick (✓) the correct answer:
0.05 is what per cent of 20?
(a) 25%
(b) 2.5%
(c) 0.25%
(d) 0.025%
Solution:
(c) 0.25%
Required percentage $=\left(\frac{0.05}{20} \times 100\right) \%=0.25 \%$
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