CSC Company Numerical Ability Algebra

An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

A. 2% B. 2.02%
C. 4% D. 4.04%

Read Solution (Total 2)

2% + 2% + 2*2/100 = 4.04% is answer
9 years agoHelpfull: Yes(3) No(1)

2%- (-2%) - (2%)x (-2)%
=4%
11 years agoHelpfull: Yes(1) No(0)

CSC Other Question

The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, then the area of the park (in sq. m) is:

A. 15360 B. 153600
C. 30720 D. 307200
The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:

A. 40% B. 42%
C. 44% D. 46%