A closed box is varnished on the outside at the rate of 5 paise per centimetre square what is total cost of varnishing a box of length 50 cm breadth 40 cm and height is 30 cm.
Answers
Answered by
13
Cost is 5 × 9400 paise = 47000 paise
That is 470 rupees
That is 470 rupees
Attachments:
Neriah:
bcz my calculations are right
i m sure i hv written correct question as given in book
i hv checked ,according to my point of view answer is 470 .bt in answer sheet 235
Then it must had been printed mistakenly
thank u mam
what mam? lol.
I read in 9th standard
i called u ....mam
becoz its a part of courtesy
okay Sir :)
Answered by
40
surface area of the box= 2×(50×40+50×30+40×30)
=9400
and area of vanishing outside so area =4700
cost =5p/cm^2
so cost=4700×5
cost=23500p or rs235
=9400
and area of vanishing outside so area =4700
cost =5p/cm^2
so cost=4700×5
cost=23500p or rs235
Similar questions