Question

The sum of three consecutive multiples of 7 is 777. Find the numbers.
(Hint: three consecutive multiples of 7 are x , x+7 , x+14)

Answer 1

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Answer 2

let 1st multiple be x
second be x+7
third be x+14
according to condition
x+x+7+x+14=777
3x+21=777
3x=777-21
3x=756
x=756/3