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Solve friends....
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An ant and a fly are standing at a point along the rim of the base of a hollow right circular cylinder. The height of the cylinder is twice its radius. They want to reach the diametrically opposite point along the rim of the top of the cylinder. The ant walks along the inner surface of the cylinder taking shortest possible route whereas the fly directly flies towards that point taking the shortest possible route. If the walking speed of the ant is half the flying speed of the fly, what is the ratio of the time taken by the ant and the fly to reach the point?
I've worked out that the hollow cylinder can be torn open to make a rectangle with the length equal to the circumference and heigh equal to the height of the cylinder but even then my answer is incorrect. Can anyone help?
Approach please
Need answers and approach to questions 16-20. Please specify if there's any hard and fast rule to these kind of problems..sort of like a formula. Please give detailed explanations.
Any quick approach
Can somebody solve this by the "units of work" method? As In, we take the lcm of all the numbers and take is a the total units of work and then find the no of units per day and so on.
plz explain
If set A is {4,9,14.....194,199} how many ordered pairs of numbers p and q ( p and q are distinct) exist such that both p and q are members of A and sum of P and Q is at most 203?
How to solve 19?
Hey guys can you keep on posting your mock scores in the mock repository thread once you start with them... For now only 2 people have posted.. Thanks :)
Approach plz ..answer is 22
Find a three digit number which, when reversed, becomes equal to 17 times the square of its cube root?
In a gathering of some friends , it was observed that five of the friends dont like to play cards, five dont like to watch tv and five dont like to listen to songs. Among those who like to play cards, only four like to watch tv . Among those who like to watch tv , only three like to listen to songs. Among those who listen to songs only two like to play cards. Only one of the friend klikes all the three activities.
(a) what is the total number of frinds in the gathering
(b) what is the number of friends who like exactly one of the three activities.
23? Confused between 1st and last option.
a+b+c =1 where a,b and c are positive numbers. Find the minimum value of (1/a-1)(1/b-1)(1/c-1)
Please solve
Shorter approach
Guys question no 9 I need a shorter approach .I did it with unitary method