The difference of two numbers, a and b, is 21. The difference of 5 times a and two times b is 18. What are the values of a and b?

Question

anonymous · Answer

This one is tough. I tend to solve this by only logic sooo. This might take a while

anonymous · Answer

a = 14 b = 35

anonymous · Answer

14 * 5 = 70 and 35 * 2 = 70.

anonymous · Answer

35-14 = 21, so it follows all guidelines.

pawanyadav · Answer

As per question
| a-b|=21.  (as difference is given a and    
         b are not we not know who is greater)
Again
      5a-2b=18
Solve the two equations
You will get the answer.