Question

The six-digit number a4273b is divisible by 72 without a remainder. Find the values of a and b.

Answer 1

2 answers · Mathematics 

 Best Answer

it is divisible by 8 * 9 

as it is divisible by 8 so last 3 digits divisible by 8 

this is so because 1000 is divisible by 8 

now 730 divided by 8 leaves 2 so 736 is last 3 digits 

so b = 6 

A42736 is divisible by 9 

so some of digits divisible by 9 
A+ 22 has to be 27 or A = 5 
so A =5 
b = 6
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Answer 2

Answer:

11

Step-by-step explanation:

11