Question

There is a ratio of 5 : 4 between two numbers. If 40 per cent of the first is 12, then 50% of the second numbers is

• A. 12
• B. 24
• C. 18
• D. 20

Answer 1

The correct option is A 12

Let first number = x
$\frac{40}{100}x=12$
X = 30
$\frac{5}{9}a=30$
A = 54
Then second number $\frac{4}{9}$(54) = 24
50% of $2^{nd}$ number $=\frac{24}{2}=12$