Question
Meena has 72 marbles of two colours – green and
yellow. If she buys 24 more green marbles, the ratio of green to yellow marbles becomes 5:3. Find the number of green marbles Meena initially had.Solution
Let the number of green and yellow marbles with Meena after buying 24 more marbles be '5x' and '3x' respectively. ATQ: 5x + 3x = 72 + 24 8x = 96 x = 12 Number of green marbles after buying = 5x = 5 × 12 = 60 Number of green marbles Meena initially had = 60 – 24 = 36
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