Book Online Demo

Check Your IQ

Try Test

Courses

Offline Centres

The height and the base diameter of a conical tomb are $24 m$ and $14 m$ , respectively. What is the cost of white-washing its curved surface at the rate of 210 per 100 sq. m?

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.1765

Rs.1535

Rs.1434

answer is A.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Given- the height and the base diameter of a conical tomb are

24 m

and

14 m

, respectively.

d = 14 m r = 7 m h = 24 m l = 72 + 242 l = 625 l = 25 m

To determine the cost of white-washing its curved surface at the rate of 210 per 100 sq. m
Then,

Curved surface area of tomb = π r l = 227 (7) (25) = 38507 = 550 m 2

Cost of white washing = 210100 (550) = 115500100 = R s .1155

Thus, the cost of white washing is Rs.1155.
Hence, option 1 is the correct option.

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