Math, asked by manibsc, 1 year ago

If 42*5 is a multiple of 9 and x is a digit then what is value of x

Answers

Answered by manshigaur12
3
divisibility of 9=sum of all no be a multiple of 9
= 4+2+x+5=11+x
11+7=18(multiple of 9)
so, x=7
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