Quantitative Aptitude - Arithmetic Ability Questions

If the salary of Manoj is 40% less than that of Subhash, then by how much percentage is the salary of Subhash more than that of Manoj?

If compound interest received on a certain amount in the 3rd year is Rs. 12,100, what will be the compound interest (in Rs) for the 4th year on the same amount if rate of interest is 9%?

Two numbers are 35% and 50% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number? 

If (a + b)/c = 6/5 and (b + c)/a = 9/2, then what is the value of (a + c)/b?

What is the unit digit of the sum of first 111 whole numbers?

The ten's digit of a 2-digit number is greater than the units digit by 7. If we subtract 63 from the number, the new number obtained is a number formed by interchange of the digits. Find the number.

If Cosec θ = 17/8, then Cot θ = ?

If a = 73, b = 74 and c = 75, then what is the value of a3 + b3 + c3 – 3abc?