Question

Amina thinks of a number and subtract 5upon2 from it she multiplies the result by 8. the result now obtained is 3 times the same number she thought. what is the number?

Answer 1

x-5/2*8=3x
=x-20=3x
=-20=2x
=-10=x

Answer 2

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Amina thinks of a number and subtracts 5/2 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?

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Let the number she thought be x

ATQ ,she subtract the 5/2 from the no.= x-5/2

She multiply the result by 8 =8(x-5/2)

Solution:-

• 3x = 8(x-5/2)
• 3x=8x -20
• 20=5x
• x=4

So, the number she thought is 4.

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