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:

The salary of an employee was first increased by 10% and thereafter decreased by 7%. What was the change in his salary?
700 ൻ്റെ 6% എത്ര?
3/4 നു തുല്യമായ ശതമാനം എത്ര ?
Rajiv spends 40% of his monthly income on food and 25% on education for his children. Of the remaining salary, he spends 20% on entertainment and 15% for purchasing dresses. He is now left with Rs. 22,750. What is the monthly salary of Rajiv?
a യുടെ 20% = b ആണെങ്കിൽ, 20 ന്റെ b% =?