Question #645c4

1 Answer
Feb 8, 2017

Answer:

The number is #15#.

Explanation:

Consider the number as #x#.

#x xx120/100=18#

Multiply both sides by #100/120#.

#x=18xx100/120#

#x=18xx(10cancel0)/(12cancel0)#

#x=18xx(5cancel10)/(6cancel12)#

#x=3cancel18xx10/(1cancel6)#

#x=3xx5#

#x=15#