Aptitude Test for Software Developers


Q.  Tap P alone fills a cistern in 2 hours; while tap Q alone fills the same cistern in 3 hours. A new tap R is attached to the bottom of the cistern which can empty the completely filled cistern in 6 hours. Sunny started all three taps together at 9am. When will the tank be full?

a. 10.30 am
b. 11.15 am
c. 12 pm
d. 9.45 am


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  When P alone does a work, he takes 25 days more than the time taken by P and Q working together to complete the work. But Q alone takes 9 days more than the time taken by P and Q working together to complete the work. In what time, P and Q together finish this work?
Category: Placement Tests,   Published by: teswesm
MCQs:  Ramesh can do a work in 5 days. Suresh can do the same work in 7 days. The total amount given for this work to them is Rs. 480. If both are working together, then what will be the share of Suresh?
Category: Placement Tests,   Published by: teswesm
MCQs:  Parthiv was appointed for a 100 days job. The condition was that he will be paid Rs. 24 for every working day. But he will also be fined Rs.12 for every day he is absent. At the end he got Rs.420. For how many days, he was absent?
Category: Placement Tests,   Published by: teswesm
MCQs:  Pipe A can fill a tank 5 times faster than Pipe B and takes 32 minutes less than Pipe B to fill the tank. If both the pipes are opened together, then in how much time the tank would be full?
Category: Placement Tests,   Published by: teswesm
MCQs:  A train passes a stationary pole in 8 seconds. The train also passes a 200 m long bridge in 28 seconds. What is the length and the speed of the train?
Category: Placement Tests,   Published by: teswesm
MCQs:  A train travels between P and Q in 3 hours. When the speed of train is increased by 6 km/hr, then it covers the same distance in 2 hours. What is original speed of train? Also find the distance between P and Q?
Category: Placement Tests,   Published by: teswesm
MCQs:  What is speed of Ram in still water and speed of river, if Ram covers 20 km in 1 hour swimming downstream and covers the same distance in 2 h swimming upstream?
Category: Placement Tests,   Published by: teswesm
MCQs:  Of the 20 cycles sold by Ajay, average cost of 12 cycles is Rs. 18000. In total he earned Rs. 300000. What was the average cost of remaining cycles?
Category: Placement Tests,   Published by: teswesm
MCQs:  A batsman played 11 innings and has a certain average. This average increases by 2 runs when his 3 innings of 32 runs, 33 runs and 34 runs are replaced by 3 other innings. Find the average of these 3 new innings.
Category: Placement Tests,   Published by: teswesm
MCQs:  20 fishermen can catch 20 fish in 20 minutes. As per this, how many fish can 400 fishermen catch in 6 hours 40 minutes?
Category: Placement Tests,   Published by: teswesm
MCQs:  75 girls complete one-third decoration of a building in 40 hours. Now they have only 50 hours to complete the rest of the decoration. How many more girls are necessary to help them complete the task?
Category: Placement Tests,   Published by: teswesm
MCQs:  30% discount on Rs. 1000 and 2 successive discounts of 15% and 15% will have a difference of
Category: Placement Tests,   Published by: teswesm
MCQs:  Ramesh sets his grandfather’s clock to the right time at 2.00 am on Thursday. But he didn’t know that the clock gains 20s for every 3 hours. What will the clock indicate on Friday night 6.30 pm?
Category: Placement Tests,   Published by: teswesm
MCQs:  Jaggu set an alarm on his clock for Monday 11 am. He set his clock correctly on Sunday 1 am. He was unaware that the clock gains 20 min every 24 hours. When his alarm went off what was the actual time?
Category: Placement Tests,   Published by: teswesm
MCQs:  Raman has 2 urns. Both these urns have some pebbles. If 20 pebbles from urn B are shifted to urn A then, the number of pebbles in each urn become interchanged. But if 10 pebbles from urn A are put into urn B, then number of pebbles in B are twice the number in A. How many pebbles do A and B have respectively?
Category: Placement Tests,   Published by: teswesm
MCQs:  Since Raj was not paying attention in class, instead of multiplying M by 2/7, he divided M by 2/7. Raj’s value was 1(13/14) more than expected value of M. What is M?
Category: Placement Tests,   Published by: teswesm
MCQs:  A fraction is divided by reciprocal of itself. It is then multiplied by the original fraction. What is the fraction if the answer obtained is 11(25/64)?
Category: Placement Tests,   Published by: teswesm
MCQs:  What least number when divided by 36, 24 and 16 leaves 11 as remainder in each case?
Category: Placement Tests,   Published by: teswesm
MCQs:  5 clocks ring automatically at intervals of 12 minutes, 8 minutes, 3 minutes, 4 minutes and 10 minutes, respectively. In 8 hours from the moment they start, how many times will they ring together?
Category: Placement Tests,   Published by: teswesm
MCQs:  What is the difference between 1500 and nearest perfect square number?
Category: Placement Tests,   Published by: teswesm