Math Puzzle 31
This math puzzle 31 is on Median,average speed,integers etc.
1) The heights of six students arranged in increasing order is
120, 130, 130, 140 , x, 160.
What is the median height?
A. 130
B. 135
C. 140
D. 110.3
E. Cannot be calculated
2) Median for a set of values arranged in the order of increasing values 2, 3, 5, x, 11, 13, 17 is 7. What is the mean for the same set of numbers?
A. 3
B. 7
C. 8.3
D. 11
E. Cannot be calculated
3) Reciprocal of (1/0.03333333) is approximately
A. 1/30
B. 1/3
C. 3
D. 30
E. 33
4) A car travels North 50 miles and turns right and travels 120 miles and reaches its destination traveling at an average speed of 30 miles/hour. If the car had taken the straight line route from starting point to the destination with the same average speed, how many hours would it save?
A. 1/3 hour
B. 2/3 hour
C. 1 hour
D. 1 1/3 hour
E. 4 1/3 hour
5) A solid cylinder of radius 2 and height 4 is painted on all its outer surfaces. With the same quantity of paint, how many circular plates of radius 2 can be painted?
(assume both sides of the circular plate are to be painted)
A. 1
B. 2
C. 3
D. 4
E. 6
6) What is 1/2% of 1/2 of 1/2?
A. 1/800
B. 1/400
C. 1/8
D. 8
E. 12.5
7) If 10x = y, what is 104x+1 ?
A. 10y
B. 4y+1
C. 10y
4
D. y
4
E. y
4 /10
8) If x+4 is an even integer, then x could be which of the following?
A. 1
B. -1
C. -3
D. -6
E. -7
9) On a certain map 5/8 of an inch represents 150 miles. How many inches will represent 240 miles?
A. 1/3
B. 1/2
C. 7/8
D. 1
E. 11/8
10) One in nine of the population is left handed. How many left handed students would you expect to find in a school of 2430 students?
A. 90
B. 210
C. 240
D. 270
E. 280
Math puzzle 31
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