MeritTrac LCM & HCF Questions and Answers Quiz-1

Question 1

Time: 00:00:00
What is the largest number that will divide 90207, 232585 and 127986 without leaving a remainder?

257

257

905

905

351

351

498

498

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Question 2

Time: 00:00:00
The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:The greatest number of four digits .which is divisible by 15, 25, 40 and 75 is?

9000

9000

9400

9400

9600

9600

9800

9800

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Question 3

Time: 00:00:00
The difference of two numbers is 14.their LCM and HCF are 441 and 7.find the numbers?

21,35

21,35

35,49

35,49

49,63

49,63

63,77

63,77

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Question 4

Time: 00:00:00
What will be the least possible number of planks, if the three pieces of timber 42m,49m,63m long have to be divided into planks of same length?

7

7

8

8

22

22

None of these

None of these

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Question 5

Time: 00:00:00
The smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28 is:The smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28 is?

1008

1008

1015

1015

1022

1022

1032

1032

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Question 6

Time: 00:00:00
The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:

15 cm

15 cm

25 cm

25 cm

35 cm

35 cm

42 cm

42 cm

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Question 7

Time: 00:00:00
The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is:

504

504

536

536

544

544

548

548

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Question 8

Time: 00:00:00
The traffic lights 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 hrs, then they will again change simultaneously at?

8:27:12 Hrs

8:27:12 Hrs

8:27:24 Hrs

8:27:24 Hrs

8:27:36 Hrs

8:27:36 Hrs

8:27:48 Hrs

8:27:48 Hrs

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Question 9

Time: 00:00:00
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?

55/601

55/601

601/55

601/55

11/120

11/120

120/11

120/11

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Question 10

Time: 00:00:00
Find the greatest possible length which can be used to measure exactly the lengths 4 m 95 cm, 9 m and 16 m 65 cm.

45 cm

45 cm

57 cm

57 cm

63 cm

63 cm

99 cm

99 cm

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