1. The sum of two numbers is 216 and their HCF IS 27. How many pairs of such numbers are there?
(1) 1 (2) 2
2. Two numbers are in the ratio 3: 4. If their LCM is 240. the smaller of the two number is
(1) 100 (2) 80
(3) 60 (4) 50
3. The LCM of two numbers is 12 times their HCF. The sum of the HCF and the LCM is 403. If one of the number is 93, the greater number is
(1) 124 (2) 128
(3) 134 (4) 138
4. The sum of two numbers is 45. Their difference is 1/9 of their sum. Their L.C.M. is
(1) 200 (2) 250
(3) 100 (4) 150
5. The L.C.M. of two numbers is 45 times their H.C.F. If one of the numbers is 125 and the sum of HCF and LCM is 1150, the other number is
(1) 215 (2) 220
(3) 225 (4) 235
6. The H.C.F. of two numbers, each having three digits, is 17 and their L.C.M. is 714. The sum of the numbers will be :
(1) 289 (2) 391
(3) 221 (4) 731
7. Two numbers are in the ratio 5: 6. If their H.C.F. is 4, then their L.C.M. will be :
(1) 90 (2) 96
(3) 120 (4) 150
8. Two numbers are in the ratio 5: 6. If their LCM is 120, their HCF will be:
(1) 12 (2) 10
(3) 8 (4) 4
9. The H.C.F. and L.C.M. of two numbers 8 and 48 respectively. If one of the numbers is 24, then the other number is
(1) 48 (2) 36
(3) 24 (4) 16
10. The greatest number, which when subtracted from 5834, gives a number exactly divisible by each of 20,28,32 and 35, is
(1) 1120 (2) 4714
(3) 5200 (4) 5600
ANSWERS:
1. | 2 |
2. | 3 |
3. | 1 |
4. | 3 |
5. | 3 |
6. | 3 |
7. | 3 |
8. | 4 |
9. | 4 |
10. | 2 |
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