The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:

Answers (1)

Assume sides of the rectangle are a,b.

Area of the rectangle = axb

After 20 % increase in each sides 

New length and width are 1.2a and 1.2b respectively.

New area of the rectangle = 1.2a x 1.2 b

                                           = 1.44 ab

Percentage increase in the rectangle = (1.44 ab -ab)x100/ab

                                                            = 44 %

Preparation Products

JEE Main Rank Booster 2021

This course will help student to be better prepared and study in the right direction for JEE Main..

₹ 13999/- ₹ 9999/-
Buy Now
Rank Booster NEET 2021

This course will help student to be better prepared and study in the right direction for NEET..

₹ 13999/- ₹ 9999/-
Buy Now
Knockout JEE Main April 2021 (Easy Installments)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 4999/-
Buy Now
Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-
Buy Now
Knockout NEET May 2022

An exhaustive E-learning program for the complete preparation of NEET..

₹ 34999/- ₹ 24999/-
Buy Now
Exams
Articles
Questions