Question

The product of four numbers is 540. Three of the four numbers are 2, 5 and 9. What is the other number?

(A)90 (B)10 (C)9 (D)6​

Answer 1

6

Explanation:

The product of four numbers is 540. Three of the four numbers are 2, 5 and 9. What is the other number?

(A)90 (B)10 (C)9 (D)6​

we do the opposite, instead of multiplying we divide

540 : 2 : 5 : 9 =

270 : 5 : 9 =

54 : 9 =

6

Answer 2

Explanation:

2*5*9*x = 540

x = 540/90 = 54/9 = 6

option D