Wipro Company Numerical Ability Geometry

The length of a rectangle is increased by 20% and the width is decreased by 20%. The area decreases by :

a. 0.8%
b. 1.2%
c. 4%
d. 8%

Read Solution (Total 1)

let length be 100
breadth be 200
area=100* 200=20000

20% inc in length=120
20% dec in breadth=160
area=120*160=19200

% dec= (20000-19200 )*100/20000=4%
10 years agoHelpfull: Yes(2) No(0)

Wipro Other Question

The length and bradth of a square are increased by 40% and 30% respectively. The area of the resulting rectangle exceeds the area of the square by :

a. 42%
b. 62%
c. 82%
d. None The length of a rectangle is increased by 60%. By what percent would the width have to be decreased to maintain the same area ?

a. 37(1 / 2)%
b. 60%
c. 75%
d. None