# 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}+ b^{c}+ c^{a}, 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

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