Find the mode of the following data. 1) 74,81,62,58,77,74. 2) 43,36,27,25,36,66,20,25. 3) 55,51,62,71,50,32. 4) 24,20,27,32,20,28,20.
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Q3
If 66+66+66+66+66+6636+36+36÷46+46+46+4626+26=2n then find the value of n.
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Q4
A closed box measures 66 cm, 36 cm and 21 cm from outside. If its walls are made of metal-sheet, 0.5 cm thick, then find the weight of the box, if 1cm3 of metal weighs 3.6 g.