Sec:-E

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :

• 1/4

• 1/10

• 7/15

• 8/15

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

• 20 days

• 22.5 days

• 25 days

• 30 days

A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished ?

• 11:30 AM

• 12 Noon

• 12:30 PM

• 1:00 PM

A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in :

• 4 days

• 6 days

• 8 days

• 10 days

If 6 men working 5 days for 8 hours each can finish a task. How many men would be needed for 4 days for 6 hours each to finish half the task?

• 10 Men

• 5 Men

• 15 Men

• 20 Men

In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was

• 2500

• 2700

• 2900

• 3100

If 20% of a = b, then b% of 20 is the same as :

• 4% of a

• 6% of a

• 8% of a

• 10% of a

A student multiplied a number by 3/5 instead of 5/3, What is the percentage error in the calculation ?

• 54%

• 64%

• 74%

• 84%

A student has to obtain 33% of the total marks to pass. He got 125 marks and failed by 40 marks. The maximum marks are :

• 500

• 600

• 800

• 1000

A man spends 35% of his income on food, 25% on children's education and 80% of the remaining on house rent. What percent of his income he is left with ?

• 6%

• 8%

• 10%

• 12%