What is the average of all multiples of 12 lying between 424 and 530

M4maths Previous Puzzles

12 Dec 2019 Average What is the average of all multiples of 12 lying between 424 and 530: OPtion
1) 476
2) 472
3) 470
4) 480
5) 468
6) 466
7) 464
8) 462
9) 478
10) None of these; Correct Option: 4 Best Solution (7)

Jaimin Raval 17 4 years AGO

difference would be 12
first term would be 432
last term would be 528
there are total 9 terms
to find average of these
simply add first and last number
so
432+528=960
now 960/2=480

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Varun 4 years AGO

4320/9 = 480 = Option (4)

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RAMADURAI NATESAN 4 years AGO

12 multiples are 432,444,456,468,480,492,504,516,528.
Average is 480

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Noel jayson 4 years AGO

total /7=480

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shubham garg 4 years AGO

432 is first
528 is last
total 9 terms
take 432 from all common
then (432*9+12*36)/9
gives 480
36 comes from 8*(8+1)/2

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S Shanmughapriya 4 years AGO

avg of nos from nos 424 to 530 which are multiples of 12=(432+444+456+468+480+492+504+516+528)/9=4320/9=480
option 4

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Vignesh 4 years AGO

480

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Punjab

Time: 00:01:33

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What is the average of all multiples of 12 lying between 424 and 530

M4maths Previous Puzzles

12 Dec 2019 Average

What is the average of all multiples of 12 lying between
424 and 530

OPtion

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