Q1 of 65 Page 31

Amina thinks of a number and subtracts from it. She multiplies the result by 8. The result now obtained is 3 times the same number she thought of. What is the number?

Let the number be x.


(x - 5/2) × 8 = 3x


⇒ 8x - 20 = 3x


⇒ 5x = 20


⇒ x = 4


Thus, the number is 4.

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