When one-half of a number is added to one-seventh of the number, the sum is 27. What is the number?

2 Answers
Apr 20, 2018

42

Explanation:

one half of the number plus one-seventh of a number is equal to nine-seventh of the number.27 divide by 9 is 3.one fourteenth of the number is 3.the number is 42.

Apr 20, 2018

color(magenta)(x=42

Explanation:

Let us assume the unknown number to be x.

According to question,

1/7x+1/2x=27

2/14x+7/14x=27

9/14x=27

x=cancel(27)^3xx14/cancel9^1

x=3xx14

color(magenta)(x=42

~Hope this helps! :)