Q2.In linear programming feasible region (or solution region) for the problem is
Answer : Option BExplaination / Solution:
In linear programming feasible region (or solution region) for the problem is given by the common region determined by all the constraints including the non – negative constraints x ⩾ 0, y ⩾ 0
Answer : Option CExplaination / Solution: the angles α,β,γare called direction angles, which the position vector r→makes with the positive x-axis ,y-axis and z-axis respectively
Q6.A black and a red dice are rolled. Find the conditional probability of obtaining a sum greater than 9, given that the black die resulted in a 5.
Answer : Option CExplaination / Solution: n(S)=36. Let A = event of getting sum greater than 9. = {(4,6),(5,5),(6,4),(5,6),(6,5),(6,6)} And B = event of getting 5 on black die. ={(5,1),(5,2),(5,3),(5,4),(5,5),(5,6)}
Q10.If l, m and n are the direction cosines of a line, Direction ratios of the line are the numbers which are
Answer : Option CExplaination / Solution:
If l, m and n are the direction cosines of a line, Direction ratios of the line are the numbers which are Proportional to the direction cosines of the line.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0