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Marks obtained by Rahul and Tarun be ‘6x’ and ‘5x’ respectively.
So, (6x + 4)/(5x – 5) = 7/5
6x + 4 = 7x – 7
x = 11
Marks obtained by Tarun = 5x = 55
Find the median of 2, 8, 6, 3, 7, 12, 5, 12 and 13.
Find the unit digit of 351.
The sum of two numbers is 18 while the sum of their squares is 164. Find the sum of the cubes of those two numbers.