HCF & LCM MCQ SET 4
1.ย The HCF of two natural numbers A & B is 39 and their LCM is equal to 390 . How many sets of values of A and B are possible?
(a) 2
(b) 3
(c) 4
(d) 8
Answer: C
2. Product of two numbers is 2028 and their H.C.F. is 13 . The number of such pairs is :
(a) 1
(b) 2
(c) 3
(d) 4
Answer: B
3. HCF and LCM of two 3-digit numbers are 16 and 2640 respectively . Find the numbers?
(a) 264 , 120
(b) 240 , 176
(c) 300 , 160
(d) 192 , 176
Answer: B
4. HCF and LCM of two 3-digit numbers are 23 and 1771 respectively . Find the sum of their numbers :-
(a) 414
(b) 391
(c) 460
(d) 322
Answer: A
5. Suppose p and q are the LCM and HCF respectively of two positive number . If p : q = 14 : 1 and pq = 1134 , then what is the difference between the two numbers?
(a) 27
(b) 35
(c) 45
(d) Cannot be determined due to insufficient data
Answer: C
6. The L.C.M. of two numbers is 495 and their H.C.F. is 5 . If the sum of the numbers is 100 , then their difference is
(a) 10
(b) 46
(c) 70
(d) 90
Answer: A
7. LCM and HCF of two numbers are 90 and 15 , respectively . If the sum of two numbers is 75 , then find the greater number .
(a) 60
(b) 45
(c) 75
(d) 90
ย Answer: B
8. The difference of two numbers is 14 . Their LCM and HCF are 441 and 7 . Find the two numbers?
(a) 63 and 49
(b) 65 and 48
(c) 64 and 50
(d) 64 and 49
Answer: A
9. The LCM of two numbers is five times their HCF . If the product of two numbers is 20480 , then find their HCF and LCM , respectively .
(a) 64 & 320
(b) 56 & 280
(c) 48 & 240
(d) 46 & 230
Answer: A
10. LCM of two numbers is 22 times their HCF . If one of the number is 132 and the sum of LCM and HCF is 276 , then what is the other number?
(a) 30
(b) 20
(c) 24
(d) 25
Answer: C
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