Quantitative Aptitude - Arithmetic Ability Questions

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The ratio between the speeds of two buses is 11:9. If the second bus runs 270 kms in 15 hours, then the speed of the first bus is?

Working 10 hours a day, Aman can complete a piece of work in 18 days. How many hours a day should he work so as to finish the work in 15 days?

The sum of a non-zero number and ten times its reciprocal is 7. Find the number.

When a discount of 25% is given on a box of popcorn, the profit is 25%. If the discount is 10%, then the profit is

The sum of the ages of Rohit and Ankit is 78. Rohit's age is twice the age of Ankit. What is the age (in years) of Rohit?

A can do a work in 16 days and B in 20 days. If they work on it together for 8 days, then what fraction of work is left?

Find x, if 5x-6+5x+6 = 6