Math Puzzle 26

This math puzzle 26 is on shares, isosceles triangle, work-time, logical reasoning etc.

1) What is the value of (2+4+6+8+10) - (1+3+5+7+9)?
A. 3      B. 4      C. 5      D. 7      E. 8

2) A student multiplies a number by 22 instead of 32 and gets the answer as 110. What answer would he get if he had done multiplied that number by 32?
A. 150      B. 160      C. 320      D. 640      E. Cannot be calculated

3) In a class of 45 students, there are 5 boys more than the number of girls. How many boys are there in the class?
A. 15      B. 20      C. 25      D. 30      E. 35

4) The price of a $20.00 share increases by 10% in a week and falls by 10% in the subsequent week. What is the price of the share at the end of 2 weeks?
A. 16.2      B. 19.8      C. 20      D. 22      E. 24.2

5) 100 shares, each of value $20.00 rises to $25.00 in 6 months. A dividend of $0.5 is declared for a share during this time. If the shares are sold at $25.00 at the end of 6 months, what is the net profit?
A. 200      B. 500      C. 550      D. 2000      E. 2500

6) In a forest 30% of the animals are carnivores. If this is represented in a circle as pie-chart, what will be the angle of the arc (in degree) for carnivores?
A. 30      B. 45      C. 54      D. 90      E. 108

7) The operation & is defined as a & b & c = a b + bc + ca , then what is the value of (0 &1 & 2) + (1 & 2 & 3)?
A. 6      B. 12      C. 13      D. 14      E. 15

8) What is the length of the longest rod that can be placed completely inside a cylinder of radius 1.5 and height 4?
A. 4      B. 5      C. 25      D. √17.25      E. 17.25

9) A farm has 15 workers who work 30 hours per week. In a week, 5 workers could not work, how many extra hours the remaining workers have to work to make up the lost time?
A. 10      B. 15      C. 20      D. 30      E. 45

10) An isosceles triangle has sides 3 and 4. Which of the following could be the length of the third side?
A. either 3 or 4      B. 3      C. 4      D. 5      E. 12

Math puzzle 26

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