Quantitative Aptitude - Arithmetic Ability Questions

12 men complete a work in 9 days. After they have worked for 6 days, 6 more men join them. How many days will they take to complete the remaining work?

If the profit is 20%, then what will be the ratio of cost price to selling price respectively?

Each member of a club contributes as much rupees and as much paise as the number of members of the club. If the total contribution is Rs. 2525, then the number of members of the club is

The percent profit made when an article is sold for Rs. 78 is twice as much as when it is sold for Rs. 69, the cost price of the article is?

If by selling an article for Rs. 390 a shopkeeper gains 20% , then the cost is

To cover a distance of 333 km in 2 hours by a car, what should be the average speed of the car (in meter/second)?

Mummy can bake 75 cakes in 15 hours, Mummy and Sister together can bake 120 cakes in 20 hours. How many cakes Sister can bake in 30 hours?

What is the compound interest (in Rs) for 1 year on a sum of Rs 20000 at the rate of 40% per annum compounding half yearly?