Question

4. The length and breadth of a cardboard is 2-m and 1-m respectively. Another cardboard has length and breadth
3-m and 2 m respectively. Both cardboards are divided into 10 equal small pieces. What is the total area of
cardboard if 5 cardboard pieces are taken from the first cardboard and 3 cardboard pieces are taken from the
second cardboard?
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Answer 1

Answer:

5.5m²

Step-by-step explanation:

area  of 1st cardboard= l x b=2 x 1=2m²

area of one piece of 1st cardboard= 2m²/10=0.2m²

area of 5 pieces of 1st cardboard=0.2 x 5=1 m²

area  of 2nd cardboard= l x b=3 x 5= 15 m²

area of one piece of 2nd cardboard= 15m²/10=1.5 m²

area of 3 pieces of 1st cardboard=1.5 x 3=4.5 m²

hence, required area=1 m²+4.5 m²= 5.5 m²