Math, asked by Alisa11, 1 year ago

please solve this question no. 12 fast

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Answered by preetijain46471
0
Total Surface area of the Tank = 2(lb + bh+ hl)
                                                 = 2(20*12 + 12*8 + 8*20 ) 
                                                 = 2( 240 + 96 + 160 )
                                                 = 2 * 496
                                                 = 992 m sq.
Length of the sheet required = Area / Breadth 
                                              = 992 / 2.5 
                                              = 396.8 m 
Now, Cost of the sheet = 396.8 * 12.50
                                     = Rs. 4960
May it is helpful for you........................       
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