Question

The produce of twins a number and 5 is 80. Find a number.

Answer 1

Finding A Number

Answer:  there are two possibilities , either the required number is 4 or - 4.

Explanation:

given that produce of twins a number and 5 is 80

Assuming that question is product of twins of a number and 5 is 80.

twins means two number of same value.

let assume the number be x

so product of twins of number and 5 = x × x × 5 = 5x²

⇒ 5x² = 80

on solving the above expression for x we get

5x² = 80

⇒ x² = 80/5 = 16

⇒ x = √16 = ± 4

so there are two possibilities , either the number is 4 or - 4

we can also check it

4 × 4 × 5 = 80

-4 × -4 × 5 = 80.

since product is coming as 80 hence our solution is correct.

#answerwithquality

#BAL