Question

4) If A's 60% of salary is equal to two-third
of B's salary. Now find the ratio of A's salary
to B's salary.
(a) 9:10
(b) 10:9
(c) 11:12
(d) 13:11​

Answer 1

Step-by-step explanation:

Since, A's 60% of salary is equal to two-third of B's salary.

$\therefore \: 60 \% of \: A = \frac{2}{3} B \\ \therefore \frac{60}{100} \: A = \frac{2}{3} B \\ \therefore \frac{3}{5} \: A = \frac{2}{3} B \\\therefore 9 \: A = 10 B \\ \therefore \frac{A}{B} = \frac{10}{9} \\ \implies \: A : B = 10 : 9$

Thus, option B is the correct answer.