top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

    Get Free Puzzle Updates

Facebook Login
Site Registration

What is the ratio whose terms differ by 40 and the measure of which is 2/7?

+2 votes
151 views
What is the ratio whose terms differ by 40 and the measure of which is 2/7?
posted Dec 30, 2014 by anonymous

Share this puzzle
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

1 Answer

+4 votes
 
Best answer

Difference between x and y = 40 I.e.
y - x = 40 ............. (1)
x/y = 2/7
Cross multiply;
7x = 2y
7x / 2 = y ............... (2)
Substitute for y in (1);
y - x = 40
(7x/2) - x = 40
Take 2 as lcm;
[7x - 2x] / 2 = 40
5x/2 = 40
Cross multiply;
5x = 2 * 40 = 80
5x = 80
x = 80/5 = 16
x = 16.

7x/2 = y
7(16) / 2 = y
7(8) = y
y = 56.

The fraction is;
16/56

answer Jan 22, 2015 by Jaspalsingh Parmar



Similar Puzzles
0 votes

The ratio of petrol and kerosene in the container is 3 : 2 when 10 liters of the mixture is taken out and is replaced by the kerosene, the ratio becomes 2 : 3. What is the total quantity of the mixture in the container?

0 votes

In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?

Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Bangalore-560102
Karnataka INDIA.
QUERY HOME
...