Question

One number is 6 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 780. Find the numbers

Answer 1

85,510 and 185.

Explanation:

let the first number be "a"

let the second number be "b"

let the third number be "c"

we know that

b=6a

c=100+a and

a+b+c=780

If we substitute the first 2 equations on the third one we get:

a+6a+100+a=780

8a+100=780

8a=780-100

8a=680

8 8

a=85

b=6a

b=6×85

b=510

c=100+a

c=100+85

c=185

Answer 2

Answer: 156, 56, 336