36. A school bus starts from a place X. The number of girls in the bus is one-third of the number of boys. At place Y, 5 girls and 35 boys leave. Now the number of boys and girls are equal. In the beginning, how many students were there in the bus ?

37. What is the number of triangles in the figure below ?

38. What is the minimum number of lines required to draw the below figure ?

39. The following figure represents four different positions of the same dice. Find the number on the face opposite to the face showing 3

Directions (Question Nos. 40 to 42) : The following line graph represents the number of trainees who joined and left the company in the beginning of the year for six years, from 2000 to 2005. The initial strength of the company in 2000 was 1500.

40. The number of trainees in the company increased/decreased from 2001 to 2002 by approximately what percentage ?