Question

7. The cost of painting a cubical box whose edge is 1 m at the rate of Rs. 1 persq. m: 15 1 b. Rs. 12 Rs. 8 d. Rs. 6 b.​

Answer 1

Answer:

here is your answer

Step-by-step explanation:

Surface area

=2(lb+bh+lh)

=2(20×15+15×12+20×12)

=600+360+480

=1440cm

2

Cost =1440cm

2

=

cm

2

0.02Rs

is equal to:72Rs

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