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Question

A bag contains tomatoes that are either green or red. The ratio of green tomatoes to red tomatoes in the bag is 4 to 3. When five green tomatoes and five red tomatoes are removed, the ratio becomes 3 to 2. How many red tomatoes were originally in the bag?

A
14
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B
15
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C
18
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D
24
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E
30
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Solution

The correct option is A 15
Ratio of green tomatoes to red is 4:3.
Let number of green tomatoes be 4n and red tomatoes be 3n
When 5 tomatoes are removed from each, then the ratio becomes 3:2.
As per problem,
4n53n5=32
8n10=9n15
8n9n=15+10
n=5
n=5
Originally 3×5=15 tomatoes were in the bag.

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