Campus Recruitment Non-Tech Quiz-2

When an integer n is divided by 7, the remainder is 5 . What is the remainder if 15n is divided by 7?

How many kg of rice costing Rs. 42 per kg should be mixed with  kg rice costing Rs. 50 per kg so that by selling the mixture at Rs. 53.10 per kg, there is a gain of 18%?

A container has some pure milk in it. 8 litres of milk is removed out of it and replaced with water. This process is repeated one more time and finally remaining milk in the container becomes 16 litre. Find the initial quantity of milk in it ?

Ramesh started a business investing a sum of Rs.40,000. Six months later, Kevin joined by investing Rs.20,000. If they make a profit of Rs.10,000 at the end of the year, how much is the share of Kevin?

Tap A can fill a tank in 12 hours, tap B can fill the same tank in 16 hours and tap C can empty the same tank in 8 hours. If all three taps A, B and C are opened together, then how much time (in hours) will be taken to fill the tank?