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HIMANI CHOURASIA from ALMAREEFA INTERNATIONAL SCHOOL, Jazan
Subject :IMO    Class : Class 5

A big rectangle is made up of 81 small rectangles. After removing some small rectangles from the big rectangle, the adjoining figure is obtained. The length of a small rectangle is 3 cm and its breadth is 2 cm. Find the total area of the rectangles removed.



A 81 sq. cm
B 114 sq. cm
C 129 sq. cm
D 90 sq. cm


Couldn't understand this question. Can you please explain how is it 19 rectangles removed

Ans 1:

HARSHIT SOLANKI from Dps, Indore
Class : Class 6

Ans 2:

SHOURYA JANA from Birla High School Mukundapur, Kolkata
Class : Class 5
To solve this, let’s analyze the problem step-by-step: Find the area of a single small rectangle: Each small rectangle has a length of 3 cm and a breadth of 2 cm. So, the area of one small rectangle is: 3   cm × 2   cm = 6   sq. cm 3cm×2cm=6sq. cm Calculate the total area of all 81 small rectangles in the big rectangle: If there are 81 small rectangles, then the area of the big rectangle is: 81 × 6   sq. cm = 486   sq. cm 81×6sq. cm=486sq. cm Count the number of small rectangles remaining in the figure: From the image, we can count the number of small rectangles remaining. By visually inspecting, there appear to be 62 small rectangles left. Calculate the area of the remaining rectangles: With 62 rectangles remaining, the area of the remaining part is: 62 × 6   sq. cm = 372   sq. cm 62×6sq. cm=372sq. cm Find the total area of the rectangles removed: Subtract the area of the remaining rectangles from the total area to find the area of the removed rectangles: 486   sq. cm − 372   sq. cm = 114   sq. cm 486sq. cm−372sq. cm=114sq. cm Thus, the total area of the rectangles removed is 114 sq. cm. The correct answer is B) 114 sq. cm.

Ans 3:

Ayush Pal from GD Goenka Public School Dakshineswar, West Bengal, India, Kolkata
Class : Class 8

Ans 4:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 5:

HARSHIT SOLANKI from Dps, Indore
Class : Class 6
area of 1 small rectangle = 3*2 =6 sq. cm.Total cards removed = 19 so ,19*6= 114 sq. cm.

Ans 6:

Sowmya Chandrasekaran from DAV GIRLS SENIOR SECONDARY SCHOOL, Chennai
Class : Class 6

Ans 7:

Souradeepto Das Mandal from Hyderabad Public School, Hyderabad
Class : Class 6
bro the small square at the is an rectangle and the thing is 2 rectangle so 19 square(rectangle) are there

Ans 8:

Aananya Singh from DPS East, Bangalore
Class : Class 4

Ans 9:

Souradeepto Das Mandal from Hyderabad Public School, Hyderabad
Class : Class 6
so B is the answer

Ans 10:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 10

Ans 11:

Advaith m from New horizon public school, Bangalore
Class : Class 4
HOW DID YOU GET 19 rectangles

Ans 12:

Vivaan from RN podar chool, Mumbai
Class : Class 5

Ans 13:

Aananya Singh from DPS East, Bangalore
Class : Class 4
Can you please explain the answer ?

Ans 14:

Avani Dixit from Elpro International School , PUNE
Class : Class 7

Ans 15:

SHRADHA MOHAPATRA from APEEJAY SCHOOL, New Delhi
Class : Class 5

Ans 16:

Ishan sandip chaudhari from Divine Child International School, Ahmedabad
Class : Class 5
Bis the answer

Ans 17:

Arav Gupta from Delhi Public School Gurgaon, Gurgaon
Class : Class 8
I can explain those squares you see? sof refers to them by saying small rectangles. 5are in moth

Ans 18:

HARSHIT SOLANKI from Dps, Indore
Class : Class 6

Ans 19:

Aarna Gupta from DPS EAST, BANGALORE , Bengaluru
Class : Class 8

Ans 20:

Swarnava Pal from Vivekananda Mission School, Haldia
Class : Class 8
but the figure is not proper .

Ans 21:

Pratham Dave from GNS, Bangalore
Class : Class 7
B is the answer to this question , Swarnava Pal

Ans 22:

Suresh Gyanchandani from St. Anselms Pink City Senior Secondary School, Jaipur
Class : Class 5
14 rectangles are removed not 19 because figure is not proper

Ans 23:

Aaditva from Vasant Valley School, New Delhi
Class : Class 8

Ans 24:

Vrinda Yadav from LVIS, Noida
Class : Class 5
Figure is not proper.

Ans 25:

stavya from dps noida, noida
Class : Class 6
please tell me how do you guys know that 19 rectangles were removed.

Ans 26:

Dhaivat Bhatti from KES SMVM School, Mumbai
Class : Class 8
can you please tell me how you got 19. Harshit Solanki from Dps, Indore.area of 1 small rectangle = 3*2 =6 sq. cm.Total cards removed = 19 so ,19*6= 114 sq. cm.

Ans 27:

Jeremy Sen from Montfort Senior Secondary, Roorkee
Class : Class 5
duuuuuumb solution

Ans 28:

stavya from dps noida, noida
Class : Class 6

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