1. The HCF of two numbers 12906 and 14818 is 478. Their LCM is ? 400086 200043 600129 800172 Answer: 400086 Explanation: View Answer Discuss in Forum Report Question

 2. The LCM of two numbers is 30 and their HCF is 5. One of the number is 10. The other is ? 20 25 15 5 Answer: 15 Explanation: View Answer Discuss in Forum Report Question

 3. The product of two numbers is 2160 and their HCF is 12. Number of such possible pairs is ? 1 2 3 4 Answer: 2 Explanation: View Answer Discuss in Forum Report Question

 4. The L.C.M. of three different numbers is 120. Which of the following cannot be their H.C.F. ? 8 12 24 35 Answer: 35 Explanation: View Answer Discuss in Forum Report Question

 5. The least multiple of 13, which on dividing by 4, 5, 6, 7 and 8 leaves remainder 2 in each case is ? 2520 842 2522 840 Answer: 2522 Explanation: View Answer Discuss in Forum Report Question

 6. The smallest square number divisible by 10, 16 and 24 is ? 900 1600 2500 3600 Answer: 3600 Explanation: View Answer Discuss in Forum Report Question

 7. The least number which when divided by 16, 18, 20 and 25 leaves 4 as remainder in each case but when divided by 7 leaves no remainder is ? 17004 18000 18002 18004 Answer: 18004 Explanation: View Answer Discuss in Forum Report Question

 8. Four bells ring at intervals of 4, 6, 8 and 14 seconds. They start ringing simultaneously at 12.00 O’clock. At what time will they again ring simultaneously ? 12 hrs. 2 min. 48 sec. 12 hrs. 3 min. 12 hrs. 3 min. 20 sec. 12 hrs. 3 min. 44 sec. Answer: 12 hrs. 2 min. 48 sec. Explanation: View Answer Discuss in Forum Report Question

 9. The largest number, which divides 25, 73 and 97 to leave the same remainder in each case, is ? 24 23 21 6 Answer: 24 Explanation: View Answer Discuss in Forum Report Question

 10. The greatest number that divides 411, 684, 821 and leaves 3, 4 and 5 as remainders, respectively, is ? 254 146 136 204 Answer: 136 Explanation: View Answer Discuss in Forum Report Question