solve the following questions
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Hope it help u......
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Step-by-step explanation:
First five multiples of 3 are :- 3,6,9,12,15 .........
a=3. n=5
d=3
Sn = n/2[2a+(n-1)d]
=> 5/2[2(3)+2(3)]
=> 5/2[6+6]
=> 5/2[12]
=>30
Hence , the sum of first five multiple of 3 is 30.
Hope it helps you !!
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