Question

3. State, true or false : (i) A ratio of equivalent to 7 : 9 is 27 : 21. (ii) A ratio equivalent to 5 : 4 is 240 : 192. (iii) A ratio of 250 gm and 3 kg is 1 : 12

Answer 1

i. False

ii. True

iii. True

Explanation :

i. 27 : 21

$= \frac{27}{21} \\ = \frac{9}{7}$

= 9 : 7

ii. 240 : 192

$= \frac{240}{192} \\ = \frac{5}{4}$

= 5:4

iii. 250gm : 3kg

= 250 : 3000

$= \frac{250}{3000} \\ = \frac{1}{12}$

= 1:12