Book Maths Puzzle Numerical Ability Permutation and Combination

In an examination,the maximum marks for each of three papers is 50 each.the max marks for the fourth paper is 100. find the number of ways with which a student can score 60% in aggregate.. (Provide detailed solution)

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Book Other Question

Anil and Vinay want to go from coimbatore to ooty.There are two ways to do this.First way is to hire a two wheeler,second is to go by bus.Vinay started immediatly to ooty in a non stop bus.After sometime Anil hired a Yamaha bike and started towards ooty.Anil overtook Vinay at 10:00 a.m. Anil reached ooty at 12:30 p.m. and spent an hour.while returning from ooty,he met the bus at 2:00p.m. when will the bus reach ooty?
options
a)2:30 p.m.
b)3:00 p.m.
c)3:30 p.m.
d)4.00 p.m. a dice is rolled 6 times. 1,2,3,4,5 and 6 appears on consecutive throws of dice. how many ways are possible of having 1 before 6 ?