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

Problems on H.C.F and L.C.M
The H.C.F. of 4 x 27 x 3125, 8 x 9 x 25 x 7 & 16 x 81 x 5 x 11 x 49 is

1260
180
540
360

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to:

120/11
55/601
601/55
11/120

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
Four bells begin to toll together respectively at the intervals of 8, 10, 12 and 16 seconds. After how many seconds will they toll together again?

246 seconds
240 seconds
243 seconds
242 seconds

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
Find the lowest common multiple of 24, 36 and 40.

360
480
120
240

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

 2 | 24 - 36 - 40 -------------------- 2 | 12 - 18 - 20 -------------------- 2 | 6 - 9 - 10 ------------------- 3 | 3 - 9 - 5 ------------------- | 1 - 3 - 5 L.C.M. = 2 x 2 x 2 x 3 x 3 x 5 = 360.

Problems on H.C.F and L.C.M
The greatest number which can divide 1356, 1868 and 2764 leaving the same remainder 12 in each case, is:

156
260
124
64

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
Find the least multiple of 23,which when divided by 18,21 and 24 leaves remainders 7,10 and 13 respectively.

3002
3036
3013
3024

ANSWER DOWNLOAD EXAMIANS APP
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