MBA Exam

If a^2 b^3 c = 256/27 , then find the minimum value of (a+b+c), where a,b and c are positive numbers.

1) 3
2) 4
3) 6
4) 9

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MBA Other Question

anuj and agraj walk up an escalator,which moves up at a constant speed . anuj climbs 5 steps for every 3 that agraj climbs. anuj gets to the top of the escalator in twenty-five steps,while agraj(his slower pace lets the escalator do a little more work)takes only 18 steps to reach the top. in how many steps would anuj reach the bottom from top,on same escalator if he doubles his speed while returning.

1) 60
2) 120
3) 200
4) he can never reach bottom
A Child has 10 number cubes , with a different no. from 0 to 9 printed on it. each cube bears only one single digit no. The child misses the cubes with number 3,4,7,9 and 0. how many two-digit number the child has missed due to missing cubes ?

1) 120
2) 65
3) 20
4) 90