Question

A poster measuring 20cm × 16cm is pasted on a sheet f cardboard such that there is a margin of 3.5cm long each side of the poster find the cost of cardboard used at the rate of rupees 1.50sq.cm

Answer 1

length of poster = 20cm
breath of poster = 16 cm
3.5 cm margin on each side means
therefore,
length of cardboard = 20+3.5+3.5 = 27cm
breath of cardboard = 16+3.5+3.5 = 23cm
Area of cardboard = l×b = 27×23 cm²
cost = 27×23×1.50 Rs. = 931.5 Rs.

Answer 2

Answer:

Step-by-step explanation:

length of poster = 20cm

breath of poster = 16 cm

3.5 cm margin on each side means

therefore,

length of cardboard = 20+3.5+3.5 = 27cm

breath of cardboard = 16+3.5+3.5 = 23cm

Area of cardboard = l×b = 27×23 cm²

cost = 27×23×1.50 Rs. = 931.5 Rs.

Readlength of poster = 20cm

breath of poster = 16 cm

3.5 cm margin on each side means

therefore,

length of cardboard = 20+3.5+3.5 = 27cm

breath of cardboard = 16+3.5+3.5 = 23cm

Area of cardboard = l×b = 27×23 cm²

cost = 27×23×1.50 Rs. = 931.5 Rs.