Quantitative Aptitude - Arithmetic Ability Questions

1/3 part of a certain journey is covered with the speed of 25 km/hr, 1/2 part of the journey is covered with the speed of 45 km/hr and the remaining part covered with the speed of 37.5 km/hr. What is the average speed (in km/hr) for the whole journey?

A product was sold foe Rs. 4,500 at a profit of 12.5%. What was the amount of profit?

An engineering student has to secure 25% marks to pass. He gets 45 and fails by 45 marks. Find the maximum marks.

In the following question, select the odd number group from the given alternatives.

For triangle PQR, find equation of altitude PS if co­-ordinates of P, Q and R are (6,2), (0,3) and (­-4,5) respectively?

The marked price of a pen is Rs 3000. The shopkeeper gives two successive discounts of 15% and a% to the customer. If the customer pays Rs 2142 for the pen, then what is the value (in percentage) of a?

If the ratio of marked price and selling price is 11 : 10, then what is the discount percentage?

What is the value of sec 30° + cot 30°?