9. In each of the following, replace by a digit so that the number formed is divisible by 9: () 492207 (m) 5938 * 623
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Step-by-step explanation:
49×2207 is divisible by 9
Then 4+9+z+2+2+0+7 is divisible by 9
24+x is divisible by 9
24+x=27
x=27−24
=3 , which is divisible by 9
∴x=3
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