Question

*How much does it cost to paint a cuboidal wooden box of 2 m length, 1 m width and 1 m height at the rate of Rs 40 per sqm.?*

1️⃣ Rs 400
2️⃣ Rs 800
3️⃣ Rs 240
4️⃣ Rs 480​

Answer 1

Answer:

Rs 400 option A as we need to find TSA of cuboid

Answer 2

Answer:

1 .RS 400

Explanation:

TOTAL SURFACE AREA=2(LB+BH+LH)

THEREFORE TSA=2(2*1+1*1+2*1)

=2(5)

THEREFORE TSA=10

THEREFORE COST=10*40

=400