Quantitative Aptitude - Arithmetic Ability Questions

What will be the net discount percentage of three successive discounts of 20%, 10% and 30%?

A man spends 59% of his income and saves the rest. What percentage of his expenditure does he save?

If a+b=2c then the value of aa-c+cb-c is equal to (where a≠b≠c)

cot3A is equal to

In a match, average of runs scored by 7 players is 53. If the runs scored by 6 players are 121, 40, 26, 56, 37 and 48, then how many runs did the 7th player scored?

In the first 45 overs of a 50 over innings, the run rate was 5.8 runs per over. What is the required run rate in the remaining overs to reach the target of 295 runs?

A missile travels at 1116 km/h. How many metres does it travel in one second?

If A, B and C can do a job working alone in 12, 18 and 36 days respectively. They all work together for 2 day, then B quits. How many days will A and C take to finish rest of the job?