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1. cosecx— cotx = 2, then find the value of cosx.

3/5

4/5

1/2

7/25

2. A boy walking at a speed of 20 km/h reaches his school 30 min late. Next time he increases his speed by 4 km/h but still he is late by 10 min. Find the distance of the school from his home.

30 km

40 km

25 km

32 km

3. A & B can dig a trench 100 m long in 10 & 20 hours respectively. At what distance from A should A & B interchange their positions so that they meet exactly at the centre if they start from opposite ends.

33.33 m

25 m

40 m

27 m

4. Find the value of sin 10 sin 30 sin50 sin70=

1/4

1/8

1/16

1

5. A right angled triangle of dimensions 3, 4, and 5 is rotated around its hypotonuse as axis. Find the volume of the figure formed.

2.4 π

6 π

9.6 π

10.8 π