A solid has 12 vertices and 30 edges. How many faces does it have?
1). 22
2). 24
3). 26
4). 20
1. A broad, low embankment built up along the banks of a river channel during floods is called
3. $If\ (2x+\frac{2}{9x})=4,\ then\ the\ value\ of\ 27x^{3}+ \frac{1}{27x^{3}}\ is $
8. If 2cosAsinB = x, then the value of x is?
10. Which of the following countries is not a member of G-8?