Question

The sum of the one- eighth, one- twelfth and one- twentieth parts is 31, find the number.​

Answer 1

Step-by-step explanation:

Let the number be x

1/8 th of the no.= x×1/8= x/8

1/12 th of the no.= x×1/12 = x/12

1/20 th of the no. = x×1/20 = x/20

Sum is 31

By condition,

x+x/8+x/12+x/20 = 31

120x+15x+10x+6x/120 = 31

151x/120 = 31

x= 31×120/151

x = 3720/151

Answer 2

Answer:

the number is 120

Step-by-step explanation: