MBA Exam

Then range of values of a is

1) [ -3, 0]
2) [ 3, α)
3) [-3, 3]
4) [-α, 3 ]

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MBA Other Question
sum of three numbers in GP is 14 and the sum of their squares is 84.Find largest of them?

1) 6
2) 4
3) 12
4) 8
 Puys pls help me to solve dis question,The engine of a railway train can cover a distance of 30km in 20 mins ,when no wagons are attached to it.when wagons are attached ,the decrease in speed is directly proportional to the cube root of the number of wagons attached .when 8 wagons are attached it covers a distance of 14km in 12 mins.What is the speed of the train(in kmph)when 64 wagons are attached to the engine?A)60B)70C)50D)30

1) 60
2) 70
3) 50
4) 30