If the length and breadth of a room are increased by y feet each, the perimeter increases by 16 feet. Find y
a) 8 b) 2 c) 6 d) 4

• 2(l+b)=x;
  2(l+y+b+y)=x+16;
  2(l+b)+4y=x+16;
  x+4y=x+16;
  y=4;
  
• 13 years agoHelpfull: Yes(13) No(1)
• If each side is increased by y, then increase in perimeter ,4y=16
  y=16/4=4 ft .. option d.
• 13 years agoHelpfull: Yes(7) No(1)
• as perimeter of rectangle is
  2(l+b)=x
  for new perimeter after increasing by y feet
  2(l+y+b+y)=x+16;
  2(l+b)+4y=x+16;
  as 2(l+b)=x so,
  x+4y=x+16;
  y=4;hence ans is 4i.e. d
• 13 years agoHelpfull: Yes(4) No(0)
• 4 as 4y=16
  
• 13 years agoHelpfull: Yes(1) No(1)
• 4y=16 so
  y = 4;
• 13 years agoHelpfull: Yes(1) No(1)
• 4y=16 so
  y = 4
• 10 years agoHelpfull: Yes(0) No(0)