Question

The length, breadth and height of a room are 6cm,4cm and 3cm respectively . Find the cost of colouring of total surface at 10 paise per sq . cm?​

Answer 1

Answer:

6 rupee is the answer

Step-by-step explanation:

we have to find curved surface area

2(l+b)×h

Answer 2

The length, breadth and height of a room are 6cm,4cm and 3cm respectively . The cost of colouring of total surface at 10 paise per sq . cm is 10.8 Rs.

Step-by-step explanation:

Given,

The length of the room L = 6 cm

Breadth of the room B = 4 cm

Height of the room H = 3 cm

The total surface area of the room

$A=2(LB+BH+HL)$

$\implies A=2(6\times 4+4\times 3+3\times 6)$

$\implies A=2(24+12+18)$

$\implies A=108$ sq cm

Cost of colouring = 10 paise per sq cm

Therefore, the total cost of colouring

$=10\times 108$ paise

$=1080$ paise

$=10.8$ Rs.

Hope this answer is helpful.

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