LCM and HCF Sample Questions with Solutions
Model 8
19.What is the least number of square tiles of uniform size required to pave the floor of a rectangular hall of length 20 m and breadth 16 m?
1) 15 2) 20 3) 35 4) 8 5) None of these
20.The length and breadth of a room are 13 m and 7.5 m respectively; the floor of the room is to be paved with square tiles of uniform size. What will be the length of the largest possible size of the tile?
1) 1.0m 2) 0.5m 3) 1.5m 4) 5.0m 5) 6.0m
21.What is the least number of square tiles required to pave the ceiling of a room 15 m long and 9 m broad?
1) 15 2) 105 3) 135 4) 81 5) None of these
22.A trader has three types of oils of the following quantities: 406 liter, 434 liter and 455 liter respectively. If he wants to fill them separately in tins of equal capacity, what is the least number of tins required?
1) 42 2) 21 3) 7 4) 84 5) None of these
23.Three bells ring at regular intervals of 3 minutes, 4 minutes and 8 minutes respectively. At what time will all the three bells ring together, if all start ringing from 10:00 AM onwards?
1) 10:15 AM 2) 10:30 AM 3) 10:24 AM 4) 11:00 AM 5) 10:36 AM
24.There are three bells which ring at regular intervals of 30 seconds, 45 seconds and 60 seconds respectively. If all of them ring together at 1:00 PM, at what time will they again ring together?
1) 1:12 PM 2) 1:24 PM 3) 1:30 PM 4) 1:03 PM 5) None of these
25.A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 3 min, B in 4 min and C in 5 min, all starting at the same point. After how many minutes will they again meet at the starting point?
1) 12 minutes 2) 24 minutes 3) 60 minutes 4) 46 minutes 5) None of these
Answers:
19 - 2 20 - 2 21 - 1 22 - 5 23 - 3 24 - 4 25 - 3
0 Comments:
Post a Comment