Question

The ratio of boys to girls in a school is 7:6..if the number of boys and girls in the school increases by 10% and 15% respectively in one year.. The number of boys will exceed the number of girls by 120..what is the total number of students in the class

Answer 1

Answer:

Step-by-step explanation:

Let the no. of boys be 7x

Let the no. of girls be 8x

Their increased number is 120% of 7x and 110% of 8x

⟹120100×7x and 110100×8x

⟹42x5 and 44x5

∴Required ratio=42x5:44x5=21:22