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For what value of z, 53 z 21 is divisible by 3?(a) 02.(b) 13. What is the valuo f o |
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Answer» whenever number is divisible by 3, the sum of all the digits need to be divisible by 3.so here when we put z=1the addition of all the digits 1+5+3+2+1=12 which is divisible by 3so z=1 |
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