Book Online Demo

Check Your IQ

Try Test

Courses

Offline Centres

A conical tomb's slant height and base diameter are 25 and 14 meters, respectively. Calculate the cost of white-washing its curved surface at 210 per 100 $m 2$ .

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.

An Intiative by Sri Chaitanya

Rs. 1155

Rs 1250

Rs 1600

Rs 1750

answer is A.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Given that,
Height of cone = 25 m
Base of cone = 14 m
Curved surface area of the cone (CSA),

C S A = π r l ⇒ C S A = 227 × 7 m × 25 m ⇒ C S A = 550 m 2

Now,
Rs.210 per 100

m 2

is the cost for white-washing,
So the cost for 550

⇒ Cost = R s 210 100 m 2 × 550 m 2 ⇒ Cost = R s 1155

So Rs. 1155 is the cost of white-washing conical tomb curved surface at the rate of 210 per 100

m 2

.
Therefore the answer is option (1).

Watch 3-min video & get full concept clarity

Ready to Test Your Skills?

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

Take Free Test