Q.1>  In how many different ways may a class 1 spelunker who has never explored any of the eight caves before set up a tour of three caves, if she wishes to explore caves Abbott and Caesar? 

Q.2>  What is the maximum number of caves that a class 3 spelunker who has previously explored only cave Benny may include in a single tour? 

Q.3 >If x + y = 3 and y/x= 2 then y = ?

Q. 4> If a=2/3b , b=2/3c, and c=2/3d what part of d is b/

Q.5> Successive discounts of 20% and 15% are equal to a single discount of

Q.6> The petrol tank of an automobile can hold g liters. If a liters was removed when the tank was full, what part of the full tank was removed?

Q.7> If x/y=4 and y is not '0' what % of x is 2x-y

Q.8> If x=y=2z and xyz=256 then what is the value of x?

Q.9> If 2x-y=4 then 6x-3y=?

Q.10> (1/10)¹⁸ - (1/10)²⁰ = ?

Q.11> Pipe A can fill in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins.If all of them work together, find the time taken to fill the tank

Q.12> Thirty men take 20 days to complete a job working 9 hours a day. How many hour a day should 40 men work to complete the job?

Q.13> Find the smallest number in a GP whose sum is 38 and product 1728

Q.14> A boat travels 20 km upstream in 6 hrs and 18 km downstream in 4 hrs. Find the speed of the boat in still water and the speed of the water current?

Q.15> A goat is tied to one corner of a square plot of side 12m by a rope 7m long. Find the area it can graze?