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Answer :

(i) Fraction of coloured part = \(\frac{1}{4} \)

\(\therefore \) Percentage of coloured parts

= \(\frac{1×100}{4×100} \) = \(\frac{100}{4} \)%= 25%

(ii) Fraction of coloured part = \(\frac{3}{5} \)

\(\therefore \)Percentage of coloured parts

= \( \frac{3×100}{5×100} \)= \(\frac{300}{5} \) %= 60%

(iii) Fraction of coloured part = \(\frac{3}{8} \)

\(\therefore \) Percentage of coloured parts

\(\frac{3×100}{8×100} \)=\(\frac{300}{8} \)% = 37.5%

- Q.1 Convert the given fractional numbers to percent. (a) \(\frac{1}{8} \) (b) \(\frac{5}{4} \) (c) \(\frac{3}{40} \) (d) \(\frac{2}{7} \)
- Q.2 Convert the given decimal fractions to per cents: (?) 0.65 (b) 2.1 (c) 0.02 (d) 12.35
- Q.4 Find: (a) 15% of 250 (b) 1% of 1 hour (c) 20% of Rs. 2500 (d) 75% of 1 kg
- Q.5 Find the whole quantity if (a) 5% of it is 600 (b) 12 % of it is? 1080 (c) 40% of it is 500 km (d) 70% of it is 14 minutes (e) 8% of it is 40 litres
- Q.6 Convert given per cents to decimal fractions and also to fractions in simplest forms: (a) 25% (b) 150% (c) 20% (d) 5%
- Q.7 In a city, 30% are females, 40% are males and remaining are children. What per cent are children?
- Q.8 Out of 15,000 voters in a constituency, 60% voted. Find the Percentage of voters who did not vote. Can you now find how many actually did not vote?
- Q.9 Meena saves ? 400 from her salary. If this is 10% of her salary. What is her salary?
- Q.10 A local cricket team played 20 matches in one season. It won 25% of them. How many matches did they win?

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