Quantitative Aptitude - Arithmetic Ability Questions

A batsman in his 12th innings makes a score of 120, and thereby increase his average by 5. The average score after 12th innings is

In a mixture of milk and water, there is 19% milk. If the quantity of milk in the mixture is 437 mililitres, then what is the total quantity (in millilitres) of mixture?

The average of first 20 multiples of 12 is

In an exam, the avarage marks obtained by John in English, Maths, Hindi and Drawing were 50. His average marks in Maths, Science, Social Studies and Craft were 70. If the average marks in all seven subjects is 58, his score in maths was

In a one day match of 50 overs in an innings the team A had a run rate of 5.3 runs per over. Team B is playing and 5 overs are left and the required run rate to tie the match is 7.2 per over to match the score of Team A. What is team B's score?

Two cars travel from city A to city B at a speed of 60 and 108 km/hr respectively. If one car takes 2 hours lesser time than the other car for the journey, then the distance between City A and City B?

The rate of working of A and B are in the ratio of 2:3. The number of days taken by them to finish the work is in the ratio:

P and Q can complete a task in 50 and 20 days respectively. In how many days can they complete 70% of the task if they work together?