If 3/p = 6 and 3/q = 15 then p - q =?
1/3
2/5
3/10
5/6
Explanation:
Given, 3/p = 6 and 3/q = 15
=> p=3/6 = 1/2
=> q=3/15 = 1/5
Hence, p-q = 1/2 - 1/5 = 5 - 2/10 = 3/10.
Next Question
The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is: