I think the answer is 3.because 1 failed for history and 4 failed in geography and 2 failed in both.10 - (1+4+2) = 3
Hope it helps and pls mark as the best answer. :-)
1 5 1
1. A cart wheel rolls along a straight line. If the distance covered is equal to the diameter of the wheel, what is the angle through which the wheel has turned ?

1. 900
2. between 900 and 1200
3. between 1200 and 1500
4. between 1500 and 1800
Heyy..Is the answer crrct??
This is may be a hypothetical question which i prefers because there are only 10 students and if we calculate among these there will be some mistake in data which u have raised in these blog..?? So i think u must check your data..