engineering recuitment NFC Chemical Plant Operator Mock Test Mathematics Differential Calculus Applications of Derivatives
The length x of a rectangle is decreasing at the rate of 3 cm/min and the width y is increasing at the rate of 2 cm/min. Find the rate of change of perimeter of rectangle.
1
2 cm/min
2
5 cm/min
3
10 cm/min
4
12 cm/min