Register

A number, half of that number, and one fifth of that number are added. The result is 51. What is the original number?

A number, half of that number, and one fifth of that number are added. The result is 51. What is the original number?
89.7k views
4 votes
A number, half of that number, and one fifth of that number are added. The result is 51. What is the original number?

User Pissu Pusa
by
8.4k points

1 Answer

7 votes
Let the original number be ‘x’
Then half of that number= 1/2x or simply x/2
Similarly one fifth of that number = x/5
According to the question
x+x/2+x/5=51
Taking LCM
10x/10+2x/10+5x/10=51
Multiplying 10 throughout
10x+2x+5x=510
17x=510
x=510/17
Therefore x=30
User Chrk
by
8.0k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Link Copied!