LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
in Mathematics by (97.1k points)
closed by
Shanti sweets stall was placing an order for making cardboard boxes for packing their sweets. Two sizes of boxes were required. The bigger of dimensions `25cm xx 20cm xx 5 cm` and the smaller of dimensions `15cm xx 12cm xx 5cm`. For all the overlaps, 5% of the total surface area is required for supplying 250 boxes of each kind.

1 Answer

0 votes
by (88.7k points)
selected by
Best answer
Surface area of one bigger box `=2(25xx20+20xx5+5xx25)`
`=1450 cm^(2)`
By adding 5% for overlaps `= 1450+72.5=1522.5 cm^(2)`
Area for 250 bigger boxes `= 1522.5xx250 cm^(2)`
Cost for 250 bigger boxes `=1522.5xx250xx(4)/(1000)=Rs. 1522.5`
Surface area of smaller box `=2(15xx12+12xx5+5xx15)=630 cm^(2)`
By adding 5% for overlaps `=630+31.5=661.5 cm^(2)`
Area for 250 small boxes `=661.5xx250xx(4)/(1000)=Rs. 661.5`
Total cost `=1522.5+661.5=Rs. 2184`.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.