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# free Online Test Problems on HCF and LCM Questions and Answers Quiz 3

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Exercise

 "I never see what has been done; I only see what remains to be done." - Marie Curie
1 . The LCM of two numbers is 45 times their HCF. If one of the numbers is 125 and the sum of HCF and LCM is 1150, the other number is :
 215 220 225 235
2 . The greatest number that exactly divides 105, 1001 and 2436 is :
 3 7 11 21
3 . The smallest fraction, which each of $6\over7$,$5\over14$,$10\over21$ will divide exactly is :
 $30\over7$ $30\over98$ $60\over147$ $50\over294$
4 . The least number, which when divided by 48, 60, 72, 108 and 140 leaves 38, 50, 62, 98 and 130 as remainders respectively, is :
 11115 15110 15120 15210
5 . The HCF of two numbers is 12 and their difference is 12. The numbers are :
 66,78 70,82 94,106 84,96
6 . The HCF and LCM of two numbers are 11 and 385 respectively. If one number lies between 75 and 125, then that number is :
 77 88 99 110
7 . The greatest number which can divide 1356, 1868 and 2764 leaving the same remainder 12 in each case, is :
 64 124 156 260
9 . Four different electronic devices make a beep after every 30 minutes, 1 hour, 1 $1\over 2$ hour and 1 hour 45 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at :