1ab8 is 4-digit number divisible by 24. If the number formed from the two digits ab is a multiple of 9. Then a+b= ?:

Options
- 9
- 8
- 12
- 14

CORRECT ANSWER : 9

Discussion Board
The number that is divisible by 24 is 1364

9 can be written as 1+8, 2+7, 3+6, and 5+4
In question it is said ab is multiple of 9. so,
1*8=8
2*7=14
3*6=18
5*4=20
From above 18 is the only multiple of 9. so
a=3 and b=6
3+6=9

Lavanya 07-17-2021 11:20 AM

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