AI Mentor

Check Your IQ

Free Expert Demo

Try Test

Courses

Dropper NEET Course Dropper JEE Course Class - 12 NEET Course Class - 12 JEE Course Class - 11 NEET Course Class - 11 JEE Course Class - 10 Foundation NEET Course Class - 10 Foundation JEE Course Class - 10 CBSE Course Class - 9 Foundation NEET Course Class - 9 Foundation JEE Course Class -9 CBSE Course Class - 8 CBSE Course Class - 7 CBSE Course Class - 6 CBSE Course

Offline Centres

What will be the breadth of a wall whose volume, 5 times as high as it is broad and 8 times as long as it is high, is $12.8 m 3$ ?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

30 cm

40 cm

22.5cm

25 cm

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

We have to find the breadth of a wall whose volume, 5 times as high as it is broad and 8 times as long as it is high, is

12.8 m 3

.
Note that, the volume of a wall,

5

times as high as it is broad and

8

times.
Suppose the breadth of the wall is

x cm

, so, its height

= 5 x cm

and its length:

We know that,
The volume of the cuboid

= l e n g t h × h e i g h t × b r e a d t h

Thus, the volume of the wall,

Note that, the volume of the wall

= 12.8 m 3

.
Since, 1 m3=100

× 100 × 100

cm3
So, 12.8 m3=12.8

×

100

× 100 × 100

cm3
Hence,
Question Image

So, the breadth of the wall is

40 cm

.
Therefore, option 2 is the correct answer.

Watch 3-min video & get full concept clarity

courses

No courses found

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!