X 2 test is also known as test for goodness of fit or fitness of good. It is used for testing of independence of two attributes.
A is capable of finishing a task in 60 days. B requires 40% more time than A to finish the same task. How many days will A and B need to complete 80% of...
‘A’ can do a piece of work in 15 days. ‘B’ can do 70% of the same work in 20 days. If they work together for the entire time and...
A, B, C can do a piece of work in 11 days, 20 days, and 22 days respectively. If B works daily and is supported by A and C on alternate days beginning w...
A and B can do a work in 24 days and 32 days, respectively. If A works on it for ‘x’ days and B works on it for ‘x – 1’ days, then one-third o...
A and B working together, can do a piece of work in 4(1/2) hours. B and C working together can do it in 3 hours. C and A working together can do it in 2...
A group of 'x' men can finish a job in 46 days. If 8 additional men had joined the group, they could have completed the same job 16 days earlier. Assumi...
'Q' is 20% less efficient than 'P' and 'R' is 60% more efficient than 'P'. If 'Q' takes 20 more days than 'R' to complete the same work, then find the t...
P can do a piece of work in 10 days. Q can do it in 16 days. With the help of R, they finish the work in 4 days. In how many days can R alone do the who...
If 18 men working 18 hours a day can make 18 quilts in 18 days, then in how many days 27 men working 12 hours per day will make 27 quilts?
A can do a piece of work in 15 days, B is 25% more efficient than A, and C is 40% more efficient than B. A and C work together for 3 days and then C lea...
