MBA Exam

Two people start swimming from the opposite ends of a swimming pool simultaneously. They meet at a distance of 410 m from one of the ends and continue swimming further till they reach the opposite ends. They take rest for 1 hr each and then start off the return journey. Now they meet at a distance of 230 m from the other end. Find the length of the pool.propose different approaches ::

1) 750
2) 1000
3) 840
4) 1100

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MBA Other Question
Here is a sequence of numbers:1,11,21,1211,111221,....It seems to be a strange sequence,but yet there is a system behind it.What is the next term in this sequence? ultimate brain teaser....

1) 312121
2) 132121
3) 123121
4) 312211
5) 311211
 A company manufactures pencils in boxes of 6, 9, and 20. The boxes are sealed and the pencils cannot be sold loose. What is the largest number of pencils that a wholesaler cannot purchase using some combination of these boxes?

1) 43
2) 99
3) 199
4) Indeterminate