Question

Sum of three consecutive multiples of 7 is 1029 find the number​

Answer 1

Answer:

Given the  three consecutive multiples of 7 are 'x' , 'x+7' , 'x+14'

Their sum = x+x+7+x+14 = 777  

               ⇒ 3x + 21 = 777

               ⇒ 3x = 777-21 = 756  

               ⇒ x = 756/3 = 252 .

Therefore three consecutive multiples of 7 are (x) = 252

                                                                   (x+7) = 252 + 7 = 259

                                                                   (x+14) = 252 + 14 = 266 .  

Step-by-step explanation: