Question

Amina thinks of a number and 5/2 from it.she multiplies the result by 8 .the result no obtained is 3 times the same number she thought. what is number​

Answer 1

Let the number be "x".
Now, if she subtracted 5/2 from it. Then,
→ "(x - 5/2)".

The result is multiplied by 8, so,
→ "8(x - 5/2)" → "(8x - 20)"

Now the result number (8x - 20) is 3 tones the same number x, (i.e., 3x)

So, according to question:
→ 8x - 20 = 3x
→ 5x = 20
→ x = 4

[If instead of subtracting 5/2, it is added, multiplied or divided, the add, multiply, or divide respectively.]


:)
THANK YOU !!!

Answer 2

Let the no. =x

5/2 from it =x+5/2

result multiplied by 8=8(x+5/2)

8x+20

result obtained is 3 times same number =3x

According to statement

8x+20=3x

8x-3x=-20

5x=-20

x=-4

no. is -4

Thanks