Challenger App

No.1 PSC Learning App

1M+ Downloads
In a class of 30 children 40% are girls. How many more girls coming to this class would make them 50% ?

A4

B3

C8

D6

Answer:

D. 6

Read Explanation:

Total students = 30 Girls = 40% of 30 = 12 Boys = 30 - 12 = 18 When 6 more girls coming to the class , num of girls = 18 That is equal to 50% of total strength of the class Total strength will be 36 (18 boys + 18 girls)


Related Questions:

ഒരു സംഖ്യയുടെ 60 ശതമാനം 288 ആയാൽ സംഖ്യ ഏത് ?
The line y = mx + 5 passes through (1,8). Find m.
If the side length of a square increases from 5 cm to 7 cm, find the percentage increase in its area
A number when increased by 40 %', gives 3500. The number is:
The enrollment in a school increases from 1200 to 1254.Determine the percent increase in enrollment?