LCM HCF QUESTIONS FOR SSC

Table of Contents

LCM/HCF

6. If L.C.M. of (12, 42) = 10m+4, then m is:

(a) 50 (b) 8 (c) 1/5 (d) 6

7. If a -b= 12 & HCF (a,b)=12 (a>b) then a,b :

(a) a = 66, b = 78 (b) a = 70, b = 82 (c) a = 94 b = 106 (d) 84,96

8. If a + b= 216 & HCF (a,b)=27 then a,b :

(a) a = 27, b = 189 (b) a = 81, b = 189 (c) a = 108, b = 108 (d) 154,162

9. Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is:

(a) 4 (b) 6 (c) 8 (d) 5

10) 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

ANSWER KEY FOR LCM HCF QUESTIONS FOR SSC AND RAILWAYS

1	2	3	4	5	6	7	8	9	10
D	C	A	B	B	B	D	A	A	C

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