Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

If the length of a rectangle is halved and its breadth is tripled, what is the percentage change in its area? A. 25 % Increase B. 25 % Decrease C. 50 % Decrease D. 50 % Increase
















If the length of a rectangle is halved and its breadth is tripled, what is the percentage change in its area?



A. 25 % Increase



B. 25 % Decrease



C. 50 % Decrease



D. 50 % Increase


Grade:upto college level

3 Answers

Karasala Ashokchowdary
33 Points
7 years ago

c

50% it will Decrease.

Hrishant Goswami
343 Points
7 years ago

Answer : Option D

Explanation :

---------------------------------------------------------
Solution 1
---------------------------------------------------------
Let original length = 100 and original breadth = 100
Then original area = 100 × 100 = 10000

Length of the rectangle is halvedNew length = Original length2=1002=50breadth is tripledNew breadth= Original breadth×3=100×3=300

1601_88599_4ansjo.jpg

Khandavalli Satya Srikanth
38 Points
7 years ago

Initial area AI=lb (l=length,b=breadth)

Area after dimensions are changed Af=(l/2)(3*b)=1.5lb

percentage change=((Af-Ai)/Ai)*100=(1.5-1)/1=50% increases

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free