Aptitude - Area - Discussion

Discussion Forum : Area - General Questions (Q.No. 5)
5.
A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?
2.91 m
3 m
5.82 m
None of these
Answer: Option
Explanation:

Area of the park = (60 x 40) m2 = 2400 m2.

Area of the lawn = 2109 m2.

Area of the crossroads = (2400 - 2109) m2 = 291 m2.

Let the width of the road be x metres. Then,

60x + 40x - x2 = 291

x2 - 100x + 291 = 0

(x - 97)(x - 3) = 0

x = 3.

Video Explanation: https://youtu.be/R3CtrAKGxkc

Discussion:
75 comments Page 7 of 8.

Jerusha said:   4 years ago
Thanks a lot @Ayoosh.
(2)

Tamil said:   8 years ago
Well said @Ayoosh.

Lalitha said:   9 years ago
Thank you @Ayoosh.

Raji said:   1 decade ago
@Aysooh superb yar

Pooja said:   7 years ago
Thank you @Ayoosh.

T BALAJI said:   9 years ago
Thank you @Ayoosh.

Shruti said:   1 decade ago
Thank you ayoosh.

Jhola said:   1 decade ago
Very good ayoosh.

Noble Phelix said:   9 years ago
Good job @Ayoosh.

Imtiyaj said:   9 years ago
God job @Ayoosh.


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