Question

14) The area of rectangle is xy where x is length and y is breadth .If the
length of rectangle is increased by 5 units and breadth is decresed by 3
units, the new area of rectangle will be
a) (x-y) (x+3)
b) xy+15
c) (x+5) (y-3)
d) xy +5-3​

Answer 1

Answer:

Step-by-step expLength of rectangle = Let be L1 = x

Breadth of rectangle = Let be B1 = y

Area of rectangle = xy

After increasing length and breadth,

New length = L2 = x + 5

New breadth = B2 = y - 3

New area = L2 * B2

= ( x + 5 ) ( y - 3 )

= x ( y - 3 ) + 5 ( y - 3 )

= xy - 3x + 5y - 15

Hence New Area of rectangle is xy - 3x + 5y - 15 .lanation:

Answer 2

Step-by-step explanation:

hey it's option c

explanation let length be x and y m be breadth

so now we know that

area of rectangle=length×breadth

thus

then (x+5)(y-3)=xy

hope it helped u a lot