Quantitative Aptitude - Arithmetic Ability Questions

Lokesh starts a business with Rs 240000. After 3 months Vishal joins him with Rs 210000. At the end of the year what will be the ratio of their profit?

Type 1 workers can do three times the work of Type 2 workers. Twelve Type 1 workers can complete a task in 10 days. How many days would it have taken 4 Type 1 and 8 Type 2 workers to complete the same task?

How much simple interest will Rs. 4000 earn in 18 months at 12% per annum?

A librarian purchased 60 story books for his library. But he found that he could get 4 extra books by spending Rs 336 more and then the overall average price per book would be reduced by Re 1. The previous average price of each book was

The average weight of 25 candles is 40 grams. If some candles of weight 50 grams each were removed, then average weight becomes 37.5 grams. How many candles of weight 50 grams each were removed? 

The ratio of present ages of P and Q is 5 : 8. Three years later their ages will be in ratio 8 : 11. What is the present age (in years) of Q?

Ravi has a roadmap with a scale of 1.5 cm for 18 km. He drives on that road for 72 km. What would be his distance covered in that map.

In the given figure, O is the centre of the circle and QOR = 50 deg, then what is the value of RPQ (in deg) ?