• 072920 77839
  • info@smartachievers.in
Menu
Back
  • JEE ADVANCE
  • JEE MAIN
  • NEET
  • BITSAT
  • CBSE BOARD
  • UP BOARD
  • CUET
JEE ADVANCE
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
JEE MAIN
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
NEET
  • CLASS XI - XII
  • CRASH COURSE
BITSAT
  • CLASS XI - XII
CBSE BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
  • CLASS VI
  • CLASS VII
  • CLASS VIII
UP BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
CUET
  • CRASH COURSE
Courses


Solution


Q.

In the picture given, one can see a rectangular in-ground swimming pool. There is a concrete sidewalk of width x metres around the pool. The outside edges of the sidewalk measure 7 m and 12 m. The area of the pool is 36 m².

Answer the following:

 

(ii) Find the width of the sidewalk around the pool.
1 3/2 m  
2 3/1 m  
3 2/2 m  
4 -3/2 m  

Ans.

(1)

Solve 2x² − 19x + 24 = 0:

⇒ (x − 8)(2x − 3) = 0

⇒ x = 8  or  x = 3/2

Since x = 8 m would make the pool dimensions negative, we reject it. Hence,

Width of the sidewalk = 3/2 m.