Math, asked by mousumilaha123, 9 months ago

A school has 1260 students. The ratio of the
number of girls to the number of boys is 2:3.
If 180 new students join the school, the ratio
changes to 5:7. How many new boys joined
the school?​

Answers

Answered by Uddeshya9
20

Pls mark as brainliest if it helps

Attachments:
Answered by Anonymous
33

Answer :-

84

Solution :-

Total no. of students = 1260

Ratio of no. of girls and boys = 2 : 3

Total parts = 2 + 3 = 5

No. of boys = 3/5 * 1260 = 756

If 180 new students joined

Total no. of students = 1260 + 180 = 1440

Ratio of no. of girls and boys = 5 : 7

Total parts = 5 + 7 = 12

No. of boys = 7/12 * 1440 = 840

No. of new boys joined = 840 - 756 = 84

Therefore, 84 new boys joined the school

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