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 time will they come together in the same position?

Related Mcqs:

H.C.F of 3240, 3600 and a third number is 36 and their L.C.M is 2⁴ * 3⁵ * 5² * 7². The third number is___________?

A. 22 * 35 * 72 B. 22 * 53 * 72 C. 25 * 52 * 72 D. 23 * 35 * 72...

The G.C.D of 1.08, 0.36 and 0.9 is________?

A. 0.03 B. 0.9 C. 0.18 D. 0.108...

The H.C.F of two numbers is 23 and the other two factors of their L.C.M are 13 and 14. The larger of the two numbers is___________?

A. 276 B. 299 C. 322 D. 345...

Find the H.C.F of 54/9, 3 9/17 and 36/51?

A. 17/6 B. 6/153 C. 6 D. 17...

A wholesale tea dealer 408 kilograms, 468 kilograms and 516 kilograms of three different qualities of tea. He wants it all to be packed into boxes of equal size without mixing. Find the capacity of the largest possible box?

A. 50 B. 36 C. 24 D. 12...