Question

WHEN A NUMBER IS MULTIPLIED BY 10 INSTEAD OF 16,ITS PRODUCT DECREASES BY 30,THEN FIND THE NUMBER

Answer 1

Answer:

5

Step-by-step explanation:

When a number multiplied by 16,

Let x be the number and  z be the product

16 x = z                         (1)

Instead of 16 it is multiplied by 10, then product decreases by 30

⇒ 10 x = z - 30            (2)

substitute (1) in (2)

10x = 16x - 30

16x - 10x = 30

6x =30

⇒ x =30÷6= 5