Math, asked by shaikafreen2512, 10 months ago

what is the sum of first 10 multiples of 6


shaikafreen2512: how was your exam
Anonymous: good
Anonymous: you have to use the formula of Sn in this
Anonymous: I got set-3
shaikafreen2512: no its only 1 mark question
shaikafreen2512: which is your center
Anonymous: Himachal
shaikafreen2512: oops
Anonymous: and yours
shaikafreen2512: bangalore

Answers

Answered by 1722
33

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


shaikafreen2512: as my answer are you sure
1722: i dont know but the answers is in front of u .u can check if i had done any mistake
Anonymous: wrong..where is d
shaikafreen2512: is it wrong anjali
Anonymous: nope..... it's right
1722: d=6 n i multiplied it too
Anonymous: It's correct
1722: my answer is right .....i think that
shaikafreen2512: okay thankyou very much
1722: its okay .
Answered by Ankitajha212
13

Answer:

Sum of first 10 multiples of 6 is 330.

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