Find the sum of first 10 multiples of 6
Asked by admin @ in Math viewed by 377 People
What is the sum of first 10 multiples of 6
Answered by admin @
Answer:
330
Step-by-step explanation:
first 10 multiples of 6 are
6 , 12 , 18...........60
here a=6
d=6
Sn = n / 2 [ 2a + (n - 1) d ]
sum of 10 terms = 10 / 2 [2 * 6 + (10-1) * 6]
= 5 [ 12 + 54 ]
= 5 * 66
= 330
∴ sum of first 10 multiples of 6 is 330
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