H.C.F Questions -II

 

H.C.F Questions -II

6.which of the following fraction is largest ?

a. 7/8                                 b. 13/ 16

c. 31/40                            d. 63/ 80

Ans : a

7. The Product of two number is 12 and their difference is 12. The number are :

a. 66,78                             b. 70,82

c. 94,106                           d. 84, 96

Ans : d

8. Three number are in the ratio 3:4:5 and their L.C.M is 2400. The sum of the :

a. 40                                    b.80

c.120                                 d. 64

Ans : a

9. Product of two co-prime number is 117. Their L.C.M should be :

a. 1                                      b. 117

c. equal to H.C.F           d.cannot be determined

Ans :b

10. L.C.M of two prime number x and y (x>y) is 161. The value of 3y-3x is :

a. -2                                    b.-1

c. 1                                      d. 2

Ans : a

11. The greatest number which can divide 1356, 1868 and 2764 leaving the same reminder 12 in each case, is :

a. 64                                 b. 124

c. 156                               d. 260

Ans : a

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