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

How many shots each having a diameter of 3 cm can be made from a cuboidal lead solid of dimensions 9cm × 11cm × 12cm?

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

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Given that each shot having a diameter of 3 cm can be made from a cuboidal lead solid of dimensions 9cm × 11cm × 12cm.
Let us assume the number of shots be n, and each having diameter 3cm, which means, radius is

1.5

cm formed from cuboidal lead solid of dimensions 9cm × 11cm × 12cm.
We know the volume of the sphere of radius r, is

43 π r 3

.
So, number of shots:

n × 43 π r 3 = l × b × h n × 43 × 227 × 1.5 3 = 12 × 11 × 9 n = 12 × 11 × 9 × 3 × 7 × 1000 4 × 22 × 15 × 15 × 15 n = 84

The number of shots is 84.
Therefore, 1 is the correct option.

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!