For a Linear Programming Problem (LPP), the given objective function \( Z = 3x + 2y \) is subject to constraints: \[ x + 2y \leq 10, \] \[ 3x + y \leq 15, \] \[ x, y \geq 0. \] 
The correct feasible region is:
The feasible region of a Linear Programming Problem (LPP) is determined by the intersection of the inequalities.
The feasible region is the set of points that satisfy all the constraints.
- Plot the given constraints on a coordinate plane:
1. \( x + 2y = 10 \) is a straight line.
2. \( 3x + y = 15 \) is another straight line.
3. \( x, y \geq 0 \) represents the first quadrant.
- The feasible region will be bounded by the lines and will be the area that satisfies all these constraints.
From the diagram, the feasible region is the region enclosed by the points \( A, O, E, C \), and the correct region is \( AOEC \).
Assertion (A): The shaded portion of the graph represents the feasible region for the given Linear Programming Problem (LPP).
Reason (R): The region representing \( Z = 50x + 70y \) such that \( Z < 380 \) does not have any point common with the feasible region.
For a Linear Programming Problem, find min \( Z = 5x + 3y \) (where \( Z \) is the objective function) for the feasible region shaded in the given figure. 

A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?