Quantitative Aptitude - Arithmetic Ability Questions

A shopkeeper marks up his wares by 60% and offers 25% discount. What will be the selling price (in Rs) if the cost price is Rs 1600?

When a number is increased by 42, it becomes 121% of itself. What is the number?

A square playground measures 1127.6164 sq.m. If a man walks 2 9/20 m a minute, the time taken by him to walk one round around it is approximately.

Z’s present age is 55 years. If 11 years ago, C’s age was 1/11 of Z’s age, then after how many years C’s age will become 37 years?

α and β are the roots of the quadratic equation x2 – x – 1 = 0. What is the value of α8 + β8?

The smallest number, which should be added to 756896 so as to obtain a multiple of 11, is

What is the ratio of simple interest earned on certain amount at the rate of 12% for 6 years and that for 12 years?

A can paint a house in 42 days and B can do it in 21 days. Along with C, they can finish the job in 7 days only.C alone can do the painting job in how many days, ?