Happy Holi .... to one n all........ a festival which explains us the beauty of colors..........!!

in advance

ll

do dis also....

an open box of wood 3 cm thick . its external dimensions r 1.46 m, 1.16m and 8.3 dm . find the cost of painting its inner surface  as 50 paise per 100 sq. cm???

pls do

inner length = outer length - 2 x width

inner breadth = outer breadth - 2 x width

inner height = outer height - 2 x width

now calculate and do it...

are calculation pe 2h(l+b) wale formulae se answer match nahi kar raha

first tell me wha is the area of 4 walls???

dimensions = 146-3, 116-3 , 83 - 3 = 143,  113, 80

area to be painted = ar of 4 walls + ar of base

                                  = 2(lb + bh + hl) + l*b

                                  = 2(143 * 113 + 113 * 80 + 80 * 143) + 143 * 113

                                  = 2(16159 + 9040 + 11200) + 16159

                                  = 72798 + 16159

                                  = 88957

cost of painting = 88957 * 50/100 = 44478.5 paise = 444 rupees 78 paise

if the formula is correct then the answer is correct but i think the formula is incorrect.

no one is chatting for the last few days whats the matter???

actually answer is Rs 354

i think frml is wrong

plz tell the formula then.

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