Problems on L.C.M and H.C.F - Data Intensity 2 Multiple Questions and Answers.




21.Which of the following fractions is the largest?
A. 8-Jul
B. 13/16
C. 31/40
D. 63/80

22.The H.C.F of two numbers is 23 and the other two factors of their L.C.M are 13 and 14. The larger of the two numbers is______?
A. 276
B. 299
C. 322
D. 345

23.The H.C.F of two numbers is 8. Which of the following can never be their L.C.M?
A. 24
B. 48
C. 56
D. 60

24.Product of two co-prime numbers is 117. Their L.C.M should be____?
A. 1
B. 117
C. equal to their H.C.F
D. Cannot be calculated

25.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___?
A. 55/601
B. 601/55
C. 11/120
D. 120/11

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