A group of soldiers was put on a job. On second day, the Lieutenant, realizing the urgency of the work, put in 6 more soldiers. Due to further pressure, workforce had to be increased by 6, each subsequent day and the job ultimately was completed in as many days as the number of soldiers in t...

Two swimmers start from opposite end of the swimming pool. Both swimmers are swimming at constant speeds. When they cross each other for the first time, they are 25 m from nearest side. They reach their respective ends and on second round they meet at a distance of 20 m from the other end. What i...

if m is an integer divisible by 6 not by 4 and n is an integer divisible by 5 but not by 3 then which of the following must be an integer
1)(4n+6m)/36
2)(3m +2n)/4
3)(5m +6n)/30
4)(m^2 +n^2)/11

A watermelon contains 85% water. 30 g of water evaporates from the watermelon and now it contains 80% water, what was the original weight of the watermelon

A train travels at a uniform speed of 25 km/hr. If the speed had been 15 km/hr more, it would have taken 8 hours less to cover the distance between stations A and B. What is the distance (in km) between A and B?
*a. * 100
*b. * 300
*c. * 250
*d. * 200

There are five boxes in a cargo hold. The wt of the first box is 200kg, 2nd is 20%higher than the wt of the 3rd whose wt is 25% higher than the wt of the first box. The 4th box is 350 kgs and is 30% lighter than the fifth box. find the difference In the avg wt of the heaviest 3 and the lightest 3?