App Logo

No.1 PSC Learning App

1M+ Downloads
The sum of the number of boys and girls in a school is 300.If the number of boys is x, then the number of girls becomes x% of the total number of students. How many girls are there in the school?

A514

B250

C125

D225

Answer:

D. 225

Read Explanation:

If the number of boys is x, then the number of girls is (300-x). Then, (300-x) =x% of 300 300-x = x/100 * 300 300-x=3x 4x=300 x=75 Thus, number of girls=300-75=225


Related Questions:

Sunita scored 66% which is 50 marks more to secure pass marks. Gita score 38% and failed by 6 marks. If Vinay scored 17.5%, then find the score of Vinay.
If the sides of a square are doubled, the percentage change in its area is ;
One number is 25% of another number. The larger number is 12 more than the smaller. The larger number is
ഒരു ക്ലാസിൽ 200 കുട്ടികളുണ്ട്. ഇവരിൽ 90 പേർ പെൺകുട്ടികളാണ്. ക്ലാസിലെ ആൺകുട്ടികളുടെ ശതമാനം കണ്ടെത്താമോ?
A student scored 30% marks and failed by 45 marks. Another student scored 42% marks and scored 45 marks more than the passing marks. Find the passing marks.