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

A gardener was asked a plant flowers in a row containing equal number of plants. He tried to plant 6, 8, 10 and 12 in each row, but 5 plants left in each case. When he planted 13 in a row, no plant was left. Find the number of plants with him?

Hamad Problems on L.C.M and H.C.F 21/12/2024

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A. 245
B. 125
C. 485
D. 845

Three numbers are in the ratio 1:2:3 and their H.C.F is 12. The numbers are__________?

Hamad Problems on L.C.M and H.C.F 28/10/2024

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A. 4, 8, 12
B. 5, 10, 15
C. 10, 20, 30
D. 12, 24, 36
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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 reciprocal of the numbers is equal to___________?

Hamad Problems on L.C.M and H.C.F 20/10/2024

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A. 55/601
B. 601/55
C. 11/120
D. 120/11
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A room is 4 meters 37 cm long and 3 meters 23cm broad. It is required to pave the floor with minimum square slabs. Find the number of slabs required for this purpose?

Hamad Problems on L.C.M and H.C.F 20/08/2024

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A. 485
B. 431
C. 391
D. 381
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In finding the HCF of two numbers, the last divisor was 41 and the successive quotients, starting from the first, where 2, 4 and 2. The numbers are______?

Hamad Problems on L.C.M and H.C.F 14/08/2024

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A. 700,400
B. 820,360
C. 800,500
D. 820,369

The greatest number of four digits that have 144 for their HCF is___________?

Hamad Problems on L.C.M and H.C.F 18/05/2024

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A. 9930
B. 9903
C. 9935
D. 9936
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The least number of four digits which is divisible by 4, 6, 8 and 10 is_________?

Hamad Problems on L.C.M and H.C.F 04/12/2023

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A. 1080
B. 1085
C. 1075
D. 1095
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Two numbers 4242 and 2903 when divided by a certain number of three digits, leave the same remainder. Find the number?

Hamad Problems on L.C.M and H.C.F 05/11/2023

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A. 101
B. 103
C. 107
D. 113

What is the least number which when divided by 8, 12, 18 and 24 leaves the remainders 4, 8, 14 and 20 respectively?

Hamad Problems on L.C.M and H.C.F 24/08/2023

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A. 78
B. 68
C. 58
D. None

The H.C.F of two numbers is 8. Which of the following can never be their L.C.M?

Hamad Problems on L.C.M and H.C.F 01/08/2023

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A. 24
B. 48
C. 56
D. 60
(more…)