sum of numbers are divisible by 3 and 5 within 100
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numbers divisible by 3& 5 will b divisible by 15
so the AP will be 15, 30,...90
Sum will be = 6/2 [2*15+5*15]
=3*105=315
so the AP will be 15, 30,...90
Sum will be = 6/2 [2*15+5*15]
=3*105=315
Answered by
2
3 - 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99
hope it helps you
hope it helps you
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