self Maths Puzzle

What are the syllabus in tcs examination ?please send me the details iam getting confusion to prepare tcs exam ?

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self Other Question

Three wheels can complete 60, 36, 24 revolutions per minute respectively. There is a red spot on each wheel that touches the ground at time zero. After how much time, all these spots will simultaneously
touch the ground again? if there are 4 boxes - 3 of them can be filled with 50 coins at max while 1 of them can be filled with 100 coins at max then how many ways are there to distribute 150 coins to these boxes ?