Problems on H.C.F and L.C.M The H.C.F. of two numbers is 11 and their L.C.M. is 693. If one of the numbers is 77,find the other. 89 109 79 99 89 109 79 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Other number = 11 X 693 = 99 77
Problems on H.C.F and L.C.M The wheels revolve round a common horizontal axis. They make 15, 20 and 48 revolutions in a minute respectively. Starting with a certain point on the circumference down wards. After what interval of t 2 min 1 min 3 min None 2 min 1 min 3 min None ANSWER DOWNLOAD EXAMIANS APP
Problems on H.C.F and L.C.M Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ? 15 4 10 16 15 4 10 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP L.C.M. of 2, 4, 6, 8, 10, 12 is 120. So, the bells will toll together after every 120 seconds(2 minutes). In 30 minutes, they will toll together 30 + 1 = 16 times. 2
Problems on H.C.F and L.C.M What will be the LCM of 8, 24, 36 and 54 345 444 112 216 345 444 112 216 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP LCM of 8-24-36-54 will be2*2*2*3*3*3 = 216
Problems on H.C.F and L.C.M If the product of two numbers is 84942 and their H.C.F. is 33, find their L.C.M. 2474 2774 2674 2574 2474 2774 2674 2574 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP HCF * LCM = 84942, because we knowProduct of two numbers = Product of HCF and LCMLCM = 84942/33 = 2574
Problems on H.C.F and L.C.M The least number which when increased by 5 is divisible by each one of 24, 32, 36 and 54, is 859 4320 869 427 859 4320 869 427 ANSWER DOWNLOAD EXAMIANS APP
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