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# Two straight lines can divide a circular disk into a maximum of 4 parts. Likewise into how many parts can four straight lines divide a circular disk ?

 A) 8 B) 9 C) 10 D) 11

 A) 8

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Similar Questions
1). A person can row a boat d km upstream and the same distance downstream in $$\Large 5 \frac{1}{4} \ hours$$. Also he can row the boat 2d km upstream in 7 hours. He will row the same distance downstream in
 A). $$\Large 3 \frac{1}{2} \ hours$$ B). $$\Large 3 \frac{1}{4} \ hours$$ C). $$\Large 4 \frac{1}{4} \ hours$$ D). 4 hours
2). The rate at which a river flows is one-third the speed of a boat in still water. If that boat travels down the river for 2 hours and then back up river for 2 hours, it will be 16 km short of its starting point. The speed (km/hour) of the boat in still water is
 A). 4 B). 6 C). 8 D). 12
3). If $$\Large a^{x} = b^{y} = c{z}$$ and $$\Large \frac{b}{a} = \frac{c}{b}$$ then $$\Large \frac{2z}{x + z} = ?$$
 A). $$\Large \frac{y}{x}$$ B). $$\Large \frac{x}{y}$$ C). $$\Large \frac{x}{z}$$ D). $$\Large \frac{z}{x}$$
4). If $$\Large f(x) = 2x^{3} + 3x^{2} + 5$$ then f(2) = ?
 A). 31 B). 32 C). 33 D). 35
5). For what value(s) of k, the roots of the equation $$\Large 9x^{2} + 2Kx + 4 = 0$$ will be equal ?
 A). 6 B). -6 C). $$\Large \pm 6$$ D). $$\Large \pm 5$$

6). A 10 metre, long ladder is placed against a wall. It is inclined at an angle of $$\Large 30 ^{\circ}$$ to the ground. The distance of the foot of the ladder from the wall is
 A). 7.32 m B). 8.26 m C). 8.66 m D). 8.16 m
8). The speed of boat A in still water is 2 km/h less than the speed of the boat B in still water. The time taken by boat A to travel a distance of 20km downstream is 30 minutes more than time taken by boat B to travel the same distance downstream. If the speed of the current is $$\Large \frac{1}{3}$$rd of the speed of the boat A in still water, what is the speed of boat B ? (km/h)
9). A boat can travel 12.6 km downstream in 35 minutes. If the speed of the water current is $$\Large \frac{1}{4}$$th the speed of the boat in still water, what distance (in km) can the boat travel upstream in 28 minutes ?
10). A boat can travel 12.8 km downstream in 32 minutes. If the speed of the water current is $$\Large \frac{1}{5}$$th of the speed of the boat in still water, what distance (in km) the boat can travel upstream 135 minutes?