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Problems on H.C.F and L.C.M

Problems on H.C.F and L.C.M
252 can be expressed as a product of primes as:

2 x 2 x 2 x 3 x 7
2 x 3 x 3 x 3 x 7
3 x 3 x 3 x 3 x 7
2 x 2 x 3 x 3 x 7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Clearly, 252 = 2 x 2 x 3 x 3 x 7.

Problems on H.C.F and L.C.M
The traffic light at three different road crossing change after every 48 sec, 72 sec. and 108 sec. respectively . If they all change simultaneously at 8 : 20 : 00 hours, then at what time will they ag

7 : 27 : 12 hrs.
5 : 27 : 12 hrs.
6 : 27 : 12 hrs.
8 : 27 : 12 hrs.

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
The product of the L.C.M. and H.C.F. of two numbers is 24. The difference of two numbers is 2. Find the numbers.

8 and 6
2 and 4
8 and 10
6 and 4

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
L.C.M. of two prime numbers x and y (x > y) is 161 The value of 3y – x is:

-2
-1
2
1

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
Find the smallest number which when increased by 5, divisible by 6, 9, 15, 20 and 24?

366
377
355
344

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
A, B and C start at the same time in the direction to run around a circular stadium. A completes a round in 252 seconds and C in 198 seconds, all starting at the same point. after what time will they

45 minutes
46 minutes 12 econds
26 minutes 18 econds
42 minutes 36 econds

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Problems on H.C.F and L.C.M

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