Question

There are 30 Girls and 40 boys in a class. If 5 boys were added newly, what is the difference between the consequent terms in the new ratio and the old ratio of number of girls to number of boys?

• A.
  2
• B.
  1
• C.
  4
• D.
  6

Answer 1

The correct option is B

1
Old ratio of number of boys to number of girls is
30 : 40 $\Rightarrow$ 3 : 4

Old consequent term = 4

After 5 boys were added, new ratio is
30 : 45 $\Rightarrow$ 2 : 3

$\therefore$ New consequent term = 3.

Difference between the consequent terms = 4 - 3 =1