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Let the number of boys and girls in the school in 2022 be '8m' and '7m', respectively. ATQ: (8m - 50 + 90) :(7m - 80 + 30) = 4:3 Or, (8m + 40) ÷ (7m - 50) = (4/3) Or, 3 X (8m + 40) = 4 X (7m - 50) Or, 24m + 120 = 28m - 200 Or, 4m = 320 So, 'm' = 80 Therefore, sum of number of boys and girls in the school in 2022: = 8m + 7m = '15m' = 15 X 80 = 1,200
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The ratio of the two numbers is 4:7. 110% of the first number is equal to the 80% of the second number. Find the sum of both the numbers.
The price of sugar is increased by 15%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and the original c...
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Find the mean proportional of 2.56 and 8.41.
