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

Problems on H.C.F and L.C.M
What is the HCF of 2/3, 4/9 and 6/5

8/45

4/15

7/45

2/45

8/45

4/15

7/45

2/45

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Problems on H.C.F and L.C.M
What is the least number, which when divided by 5,6,8,10 and 12 leaves the remainder 2 in each case , but when divided by 13 leaves no remainder ?

762

864

962

664

762

864

962

664

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Problems on H.C.F and L.C.M
The least number of five digits which is exactly divisible by 12,15 and 18 is :

10080

10010

10020

10015

10080

10010

10020

10015

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Problems on H.C.F and L.C.M
Which greatest possible length can be used to measure exactly 15 meter 75 cm, 11 meter 25 cm and 7 meter 65 cm

265 cm

275 cm

285 cm

255 cm

265 cm

275 cm

285 cm

255 cm

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Problems on H.C.F and L.C.M
The traffic lights at three different road crossings 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 they again change

10:13:17 hrs

7:25:14 hrs

8:27:12 hrs

9:22:08 hrs

10:13:17 hrs

7:25:14 hrs

8:27:12 hrs

9:22:08 hrs

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Problems on H.C.F and L.C.M
Find the least number which when divided by 16, 18, 20 and 2 leaves 4 as remainder in each case , but when divided by 7 leaves no. remainder

18000

18002

18004

17004

18000

18002

18004

17004

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