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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.
A wheel of a car of radius 21 cms is rotating at 600 RPM. What is the speed of the car in km/hr?
A) 79.2 km/hr
B) 47.52 km/hr
C) 7.92 km/hr
D) 39.6 km/hr
E) 3.96 km/hr
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?
A) 31 kg
B) 61 kg
C) 60 kg
D) 62 kg
E) 91 kg
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
A) Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.
B) Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.
C) BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.
D) EACH statement ALONE is sufficient to answer the question asked.
E) Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.
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?
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 8
A) $ 83
B) $ 92
C) $ 90
D) $ 97
E) $ 104
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