Science, asked by krishnasambyal29, 11 hours ago

Babita wants to buy the boxes for his kitchen on this Diwali. He wants light weight, strong, non reactive and durable boxes. Which Should she select from the followings?​

Answers

Answered by bobbykumar3110
0

Answer:

Total S.A of bigger box

=2(lb+bh+lh)

=2(25×20+25×5+20×5) cm

2

=2(500+125+100)

=1450 cm

2

⇒For overlapping extra area required =

100

450×5

=72.5 cm

2

∴ Total S.A (including overlaps)

=1450+72.5=1522.5 cm

2

Area of cardboard sheet for 250 such boxes

=(1522.5×250) cm

2

Total S.A of smaller box

=2(15×12+15×5+12×5)cm

2

=630 cm

2

For overlapping area required =

100

630×5

=31.5 cm

2

Total S.A (including overlaps)=630+31.5=661.5 cm

2

Area of cardboard sheet required for 250 such boxes

=250×661.5cm

2

=165375 cm

2

Total cardboard sheet required =380625+165375

=54000 cm

2

⇒Cost of 1000 cm

2

cardboard sheet = Rs.4

⇒Cost of 546000 cm

2

cardboard sheet

= Rs.

1000

546000×4

= Rs. 2184

Answered by SharadSangha
0

Babita should buy a plastic container.

Explanation,

  • Food containers made of Polyethylene Terephthalate (PET) should be used.
  • These plastics containers are wildly used and are most suited for packaging food.
  • They are light in weight and are very tough. They are flexible and have high impact strength.
  • It also has good chemical resistance against acids and very low moisture absorption.

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