A cylindrical vessel open at the top has diameter 20cm and height 14cm . find the cost of tin painting it on the inside at the rate of 50paise per 100sq cm
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Answered by
19
To Find The Cost Of Tin Plating We Should Find The TSA.
But It Is Open At The Top
So Remaining TSA
Hence Area Of Top Must Be Excluded
So Remaining TSA = 2*pie*r*h + pie*r*r
Substituting Values
TSA = 2*22/7*10*14 + 22/7*10*10
TSA = 880+2200/7 = 8360/7 m2
Cost = 50 Paise = Re 1/2
Cost = 8360/7*1/2*1/100 = 5.9714
So Approximate Cost = Rs 6
Hope it helps you.
Thank you.
But It Is Open At The Top
So Remaining TSA
Hence Area Of Top Must Be Excluded
So Remaining TSA = 2*pie*r*h + pie*r*r
Substituting Values
TSA = 2*22/7*10*14 + 22/7*10*10
TSA = 880+2200/7 = 8360/7 m2
Cost = 50 Paise = Re 1/2
Cost = 8360/7*1/2*1/100 = 5.9714
So Approximate Cost = Rs 6
Hope it helps you.
Thank you.
YASH3100:
I can't see any mistake if you find any then pls do tell me
can u plz check mine
image is wrong
cropped
I guess I only committed a mistake, sorry
it's OK bruh
Thanks buddy
but where is that guy gone who asked the question
Haan exactly
haha
Answered by
4
Hey, hope so this will help u a bit
Thnxxxx
SA=csa +base area
=2pie.r.h+pie.rr
=pie.r(2h+r)=
22/7x380
=1193.2cm²
Cost=1193.2x1/200=5.966rs
Don't follow image it is cropped in correctly
Thnxxxx
SA=csa +base area
=2pie.r.h+pie.rr
=pie.r(2h+r)=
22/7x380
=1193.2cm²
Cost=1193.2x1/200=5.966rs
Don't follow image it is cropped in correctly
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