Question

sym of the first three multiple is 30 find the no​

Answer 1

Answer:

Let the no be a

ATQ

1a+2a+3a=30

5a=30

a=6

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Answer 2

Answer:

5.

Step-by-step explanation:

The first three multiples of 5 are:5,10,15...

Sum of first three are

5+10+15 = 30

Hence, 5 is the number whose first three multiples sum Upto 30.