Quantitative Aptitude - Arithmetic Ability Questions

10% discount is offered on an item. By applying a promo code the customer wins 5% cash back. What is the effective discount?

A student multiplied a number by 6/7 instead of 7/6. What is the percentage error in the calculation?

Rehman walks at 8 km/hr and Roma cycles at 13 km/hr towards each other. What was the distance between them when they started if they meet after 36 minutes?

If a + b = 10 and ab = 24, then what is the value of a3 + b3?

P bought an article for Rs. 1600 and sold it at a profit of 10%. What would have been the increase in the profit percent if it was sold for Rs. 1840?

A spaceship travels at 1,260 km/h. How many metres does it travel in 1/10 th of a second?

In the given figure, PQR is an equilateral triangle with side as 12 cm. S and T are the mid points of the sides PQ and PR respectively. What is the area (in sq.cm) of the shaded region?

The difference between cost price and selling price is Rs 494. If loss percentage is 19%, then what is the selling price (in Rs)?