Quantitative Aptitude - Arithmetic Ability Questions

If a wholesaler, sells a tin of coffee at Rs 528 he faces a loss of 12%. Now if he decides to sell it at Rs 636, what will be the profit (in %)?

P and Q can do a project in 150 and 100 days respectively. In how many days can they complete 60% of the project if they work together?

The ratio of number of boys and girls in a class is 2 : 3. The average weight of boys and girls in the class is 18 kg and 21 kg respectively. What is the average weight (in kgs) of all the boys and girls together?

P and Q are two alloys which are prepared by mixing tin and lead in the ratio of 12 : 5 and 4 : 3 respectively. If equal quantities of alloys are melted to form athird alloy R, then what is the ratio of tin and lead in alloy R?

If a2+b2=80 and ab = 32, then calculate the value of a-b/a+b.

5% discount is offered on an item. By applying a promo code the customer wins 20% cash back. What is the effective discount?

What is the rate of interest (in %) if simple interest earned on a certain sum for the 3 years is Rs 6,000 and compound interest earned for 2 years is Rs 4,160?

If 23x + 23y = 184, then what is the average of x and y?