MBA Exam

How many 5 - digit numbers, comprising only the digits 4 and 5 are divisible by 3?guys please post ur approach....

1) 10
2) 11
3) 12
4) >12

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MBA Other Question

(1! + 2! + 3! - - - - - - - -- - - - -- - + 98!)/ 17Find the remainder?

1) 3
2) 16
3) 12
4) 13
Shyama and Vyom walk up an escalator (moving stairway). The escalator moves at a constant speed. Shyama takes three steps for every two of Vyom’s steps. Shyama gets to the top of the escalator after having taken 25 steps, while Vyom (because his slower pace lets the escalator do a little more of the work) takes only 20 steps to reach the top. If the escalator were turned off, how many steps would they have to take to walk up?

1) 40
2) 50
3) 60
4) 80