84. In a class of 75 students the ratio of boys and girls is 2:3.
How many more boys are to be added to make the ratio
1:1?
(a) 15 boys (b) 30 boys (c) 12 boys (d) 24 boys
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Answer:
(a) 15 boys
Explanation:
2x+3x= 5x = 75
=> x = 15
=>2x= 30; 3x= 45
hence, 45-30= 15 (ans)
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