Question : Raju and Akber take 4 hours and 6 hours to type 32 pages and 48 pages, respectively, on a computer. They are given an assignment of typing 256 pages. If they work together, typing on two different computers, starting at the same time, how much time will they take to complete the assignment (in hours)?

Option 1: 16

Option 2: 14

Option 3: 18

Option 4: 12

Question : In approximately how much time, does Mars complete one spin on its axis?

Option 1: 1 day

Option 2: 1 day 18 hours

Option 3: 18 hours

Option 4: 16 hours

Question : Directions: By interchanging which two numbers (not digits) the given equation will be correct?
16 + 6 ÷ 18 – 5 × 1 = 14

Option 1: 5 and 16

Option 2: 14 and 18

Option 3: 5 and 14

Option 4: 18 and 6

Question : If $xy=48$ and $x^2+y^2=100$, then $(x+y)$ is:

Option 1: 12

Option 2: 16

Option 3: 18

Option 4: 14

Question : P can fill a tank in 5 hours, and Q can fill the same tank in 10 hours. R can empty the same tank in 20 hours. How much time will all the three take together to fill the same tank?

Option 1: 10 hours

Option 2: 4 hours

Option 3: 6 hours

Option 4: 5 hours

Question : O, T, and P can do a piece of work in 3, 4, and 6 hours respectively. If they are working together, then in how much time they will finish the work?

Option 1: 1 hour

Option 2: 1 hour 10 minutes

Option 3: 1 hour 20 minutes

Option 4: 1 hour 15 minutes