At an educational trip of the academy to Islamabad, the ratio of boys to girls was 4:5. the number of students on the trip is ------.?
Answer: 90
Explanation
The Ratio between boys and girls is = 4:5
So, their sum is 9 (as 4+5=9)
We have to find an answer which is easily divisible by 9
As 90 is a multiple of 9
=> (The first 10 multiples of 9 are 9, 18, 27, 36, 45, 54, 63, 72, 81, 90.
So the answer is 90
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ND19-1-2023
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