For the following questions answer them individually
X alone can do a piece of work in 12 days and Y alone can do the same work in 6 days. In how many days will both together complete the same work?
A contractor undertook to finish a certain work in 124 days and employed 120 men. After 64 days, he found that he had already done 2/ 3 of the work. How many men can be discharged now so that the work may finish in time ?
The sum of all prime numbers between 30 and 42 is
The perimeter of a rectangular table is 60 cm. If the area of the rectangular table is 209 $$cm^2$$, then what will be the length of the table?
The Bar graph given below presents the amount (volume in litres) of water in ten different mixtures.
What is the average amount of water per mixture?