Math, asked by omannadate123, 3 months ago

if 21y5 is a multiple of 9 ,where is y is a digit

Answers

Answered by itzBrightRider

2

DIVISIBLITY RULE OF 9=SUM OF ALL DIGITS MUST BE DIVISIBLE By 9\

ITS SUM=2+1+5=8

NEXT DIGIT DIVISIBLE BY 9=9

8+Y=9

Y=1

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