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

Problems on H.C.F and L.C.M
Three numbers are in the ratio of 2 : 3 : 4 and their L.C.M. is 240. Their H.C.F. is:

40
60
30
20

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Problems on H.C.F and L.C.M
How many minimum number's of whole square slabs are required for paving the floor 12.96 meters long and 3.84 meters side?

192
256
216
108

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Problems on H.C.F and L.C.M
The least number which is a perfect square and is divisible by each of the numbers 16,20, and 24, is :

6400
3600
1600
11400

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Problems on H.C.F and L.C.M
14. The least number which when diminished by 7 is divisible by 21, 28, 36 and 45 is?

1261
68
1267
1265

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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
2
-1
1

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Problems on H.C.F and L.C.M
The least number which when divided by 16, 18 and 21, leave the remainder 3, 5 and 8 respectively is:

893
982
995
1024

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MORE MCQ ON Problems on H.C.F and L.C.M

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