Question

Amina think of a number and subtracts 5/2 from it. She multiplies the result by 8. The result now obtained is 3 times the number she thought of. What is the number?

Answer 1

The number she thought of is 4. (4-(5/2))*8= 12

Answer 2

Let the number be x.
⇒By the condition ,
$(x- \frac{5}{2} )8=3x$
⇒$8x-20=3x$
⇒$8x-3x=20$
⇒$5x=20$
⇒$x= \frac{20}{5}$=4
Ans:The number her imaginative mind thought of is 4(i wonder why 4 of all numbers)....