Question

What number is five times the first number. The third number is 100 more than the first number. Of the sound of three numbers is 490, find the numbers

Answer 1

The three numbers are:

4.62,

23.1, and

462.2

Explanation:

Let X be the "first number."

B = What number is five times the first number: 5X

C = third number is 100 more than the first number: 100X

The sum of all three is 490: X + B + C = 490

----

X + B + C = 490

X + 5X + 100X = 490

106X = 490

X = 4.622

Check:

X = 4.622

B = 5X = 23.11

C = 100X = 462.2

Check:

Sum (4.622 + 23.11 + 462.2) = 490