Question

The first digit of a six digit number is nine. If this night is moved to the end of the number, the new six digit number is only a quarter of the original number. Find the original number.

Answer 1

Original number: 923076

Explanation:

Original number = 9????? let's use x to represent ?????

Then the original number = 900000 + x

when 9 be moved to the end ?????9 i.e. 10x + 9

900000 + x = 4 * (10x + 9)

900000 + x = 40x + 36

39x = 899964

x = 23076

Original number: 923076

check: 230769 x 4 = 923076 .... correct