MBA Exam

How many 3-digit natural numbers have their cubes ending with 24 ?

1) 6
2) 9
3) 18
4) 21

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MBA Other Question

please explain it for me...L(x)=1/2 max(6-x,x+2),what s the smallest possible value for x??

1) 2
2) 6
3) 8
4) NOT
Sam took a total of 4 hours to cover a round trip on a river. If he doubles his rowing speed, he would take 2.4 hours less to cover the round trip. What is the ratio of the speed of the stream to the intial rowing speed of Sam in still water?

1) 1:01
2) 1:02
3) 2:03
4) 3:04