A and B can do a piece of work in 72 days; B and C can do it
in 120 days; A dn C can do it in 4 days. Who among these
will take the least time if put to do it alone?

Answer Posted / iram

Answer is A

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

A job may be completed in 12 days, working for 8 hours a day if 20 men or 24 women or 40 boys perform the task. If a task four times as big as this is done for 5 hours a day for 12 days, how many men will be required to join 6 women and 2 boys to complete the task?

829


A family I know has several children. Each boy in this family has as many sisters as brothers but each girl has twice as many brothers as sisters. How many brothers and sisters are there?

913


At six o'clock the wall clock struck 6 times . Checking with my watch , I noticed that the time between the first & last strokes was 30 seconds . How long will the clock take to stike 12 at mid night

1039


A can work three times as B can work. If A takes 60 days less than B to complete the same task, calculate the number of days when both A and B start working together on the same day.

649


Asmita invests an amount of Rs. 9535 at the rate of 4 per cent per annum to obtain a total amount of Rs. 11442 on simple interest after a certain period. For how many years did she invest the amount to obtain the total sum?

1067






box 1 cotain odd value X or Y the box 2 =X i.e 7 or 12 box 3= Y has value 19 if X is 7 or 31 if x is 12 get even value X or Y Use any operator steps allowed 3

4344


Find the value of @@+25-++@16, where @ denotes "square" and + denotes "square root".

1991


The square of a two digit number is divided by half the number. After 36 is added to the quotient, this sum is then divided by 2. The digits of the resulting number are the same as those in the original number, but they are in reverse order. The ten's place of the original number is equal to twice the difference between its digits. What is the number?

867


A theif steals half the total no of loaves of bread plus 1/2 loaf from a backery. A second theif steals half the remaing no of loaves plus 1/2 loaf and so on. After the 5th theif has stolen there are no more loaves left in the backery. What was the total no of loaves did the backery have at the biggining.

1068


Find the missing number in this series? 8 2 14 6 11 ? 14 6 18 12

843


he hour hand lies between 3 and 4. Tthe difference between hour and minute hand is 50 degree.What are the two possible timings?

951


if area is icc. by 30% then what is the change in the area?

1564


Instead of multiplying a number by 7, the number is divided by 7. What is the percentage of error obtained?

911


Technical questions

1381


In a certain college, 20% of the boys and 40% of the girls attended the annual college outing. If 35% of all the students are boys, what percent of all the employees went to the outing?

933