MBA Exam

p,q and r are successive even positive integers in the ascending order.4 times r is 4 times more than 5 times p.what is the value of q?pl. provide sol.

1) 12
2) 14
3) 16
4) 10

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MBA Other Question

The rate of consumption of electricity by a metro train varies as the square of its speed (in km/hr). Consumption of electricity is 1000 kw/hour when the speed of the metro train is 40 km/hr. All other costs to run the metro train is Rs. 12 per hour. If the cost of electricity is Rs. 15 per 100 kw-hour, then of the following which is the speed (in km/hr) at which the train can run such that the total cost of running the train per kilometer is Rs. 7.65?

1) 80
2) 90
3) 60
4) 180
5) 120
If (31.74)^x=(3.14)^y=100^z what is the relation between x y and z?

Its my cat Question of this year..
dont remember thw options exactly..

1) 1/x=1/y+1/z
2) 1/2x=1/y-1/z