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Frequently Asked HCL Numerical Ability - LCM and HCF Interview Questions with Answers

(#M40051336) HCL QUESTION Keep an EYE

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:

Option 1 : 55/601 Option 2 : 601/55 Option 3 : 11/120 Option 4 : 120/11

Asked In HCL Manas Nanda (10 years ago)

Unsolved Read Solution (7)

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(#M40151260) HCL QUESTION MIXED Keep an EYE

1.There are 6 boxes numbered 1,2,...6. Each box is to be filled up either with a red or a green ball in such a way that at least 1 box contains a green ball and the boxes containing green balls are consecutively numbered. The total number of ways in which this can be done is:
A.5
B.21
C.33
D.60
E.27

2.Arun, Barun and Kiranmala start from the same place and travel in the same direction at speeds of 30, 40 and 60 km per hour respectively. Barun starts two hours after Arun. If Barun and Kiranmala overtake Arun at the same instant, how many hours after Arun did Kiranmala start?
A.3
B.3.5
C.4
D.4.5
E.none of these

3.A work is done by three person A,B and C. A alone takes 10 hours to complete a single product but B and C working together takes 4 hours, for the completion of the same product. If all of them worked together and completed 14 products, then how many hours have they worked?
A.20 hrs
B.28 hrs
C.40 hrs
D.54 hrs
E.none of these


4.A bus without stopping travels at an average speed of 60 km/hr and with stoppages at an average speed of 40 km/hr. What is the total time taken by the bus for stoppages on a route of length 300km?
A.4 hr
B.3 hr
C.2.5 hr
D.3.5 hr
E.None of above

Asked In HCL Nikita (10 years ago)

Unsolved Read Solution (14)

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(#M40018217) HCL QUESTION time n distance Keep an EYE

2 cyclist begin training at same time A complete each lap in 4 sec B in 6 minutes how many minutes after start will both cyclist pass at exactly same spot when they begin to cycle

Asked In HCL janvi sahu (12 years ago)

Solved vinod Read Solution (2)

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