Question

The ten digit number 2x600000y8 is exactly divisible by 24. If x ≠ 0 and y ≠ 0, then the least value of (x + y) is equal to:a

Answer 1

Answer:

5

Step-by-step explanation:

First know the divisibility rule 8 & 3

for a number to be divisble by 8 , the last 3 digits of the number should be divisible by 8 ,for a number to be divisble by 3 sum of the all digits of a number should be divisible by 3

for a number to be divisible by 24 , it should be divisible by 8 and 3 simultaneously.

for the given number to be divisble by 8, 0y8 should be divisible by 8

y= 4

for the given number to be divisble by 3, sum of the digits i.e. 20+x should be divisible by 3 ,then x = 1

now x+y = 5

number will be 2160000048