# 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?

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)

(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 10**

^{x}= y, what is 10^{4x+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

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