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GMAT Math practice - (5/36 questions - random)

GMAT practice questions.  Once you complete the quiz you will see your score and explanation of the correct answer.


 1.  A wheel of a car of radius 21 cms is rotating at 600 RPM. What is the speed of the car in km/hr?

 
 2.  The average weight of a group of 30 friends increases by 1 kg when the weight of their football coach was added. If average weight of the group after including the weight of the football coach is 31kgs, what is the weight of their football coach in kgs?

 
 3.  If m, s are the average and standard deviation of integers a, b, c, and d, is s > 0?

(1)    m > a

(2)    a + b + c + d = 0



 
 4.  A poultry farm has only chickens and pigs. When the manager of the poultry counted the heads of the stock in the farm, the number totaled up to 200. However, when the number of legs was counted, the number totaled up to 540. How many chickens were there in the farm?

 
 5.  The average wages of a worker during a fortnight comprising 15 consecutive working days was $ 90 per day. During the first 7 days, his average wages was $ 87/day and the average wages during the last 7 days was $ 92 /day. What was his wage on the 8th day?

 

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