Quantitative Aptitude - Arithmetic Ability Questions

What least value which should be added to 1812 to make it divisible by 7, 11 and 14?

Choose the odd word/letters/number/number pair from the given alternatives.

The distance between two places can be covered in 3.5hrs at a speed of 62 kmph. If the speed is increased by 8 kmph, how much time would be saved?

A and B together do a job in 12 days and A could do the job in 20 days if he worked alone. How many days would B take to do the job if he worked alone?

Which of the following is a reductible fraction?

Two pipes X and Y can fill an empty tank in 16 hours and 20 hours respectively. Pipe Z alone can empty the completely filled tank in 25 hours. Firstly both pipes X and Y are opened and after 6 hours pipe Z is also opened. What will be the total time (in hours) taken to completely fill the tank?

The least number that must be added to 8961 to make it exactly divisible by 84 is

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?