CTET 2 Math and Science Dec 2019 Paper

Question : 36 of 120

Marks: +1, -0

The number of fruits in baskets A and B are in the ratio 7 : 9. If six fruits are taken out from A and put in B, then this ratio becomes 1 : 3. The total number of fruits in A and B is:

Validate

Solution:

Let the number of fruits in baskets A and B are 7x and 9x
Then,

{7x-6}/{9x+6}= 1/3

⇒ 21x – 18 = 9x + 6
⇒ 21x – 9x = 18 + 6
⇒ 12x = 24
⇒ x = 2
⇒ The total number of fruits in A and B = 7x + 9x = 16x = 16 × 2 = 32.

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