Question

The sum of three consecutive multiples of 7 is 777. Find these mutiples. ( hint: Three consecutive multiples of 7 are 'x','x+7,'x+14')

Answer 1

Here we are already given with the hint that the numbers are
x, x + 7 and x + 14

Given

x + x + 7 + x + 14 = 777
=> 3x + 21 = 777
3x = 777 - 21 = 756
x = 756/3
x = 252


Now first number is x = 252
second = x + 7 = 252 + 7 = 259
third = x + 14 = 252 + 14 = 266



Hope it helps dear friend ☺️✌️

Answer 2

Let the first consecutive multiple be x
then second =x+7
third =x+14

x+x+7+x+14=777
3x+21=777
3x=756
x=252

first no.is 252
second no.is 259
third no.is266