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Q 1: The weight E of a man on earth's surface is directly proportional to his weight M on mars. The constant of proportionality is 3, if a man weights 126 kg on earth, how much will he weigh on mars? 42 kgs 45 kgs 40 kgs	Q 2: The numbers x and y are directly proportional and x=9 when y=3. Find x when y=8; and find y when x=42. 25 and 15 respectively 24 and 14 respectively 14 and 24 respectively
Q 3: The expenditure per month for 15 students in a dormitory is $2,250. If 10 more students joined, what will be the monthly expenditure now? $3,500 $2,750 $3,750	Q 4: The pressure P exerted at any point on the base of a tank filled with liquid varies directly as the depth D of the liquid. The pressure exerted by the liquid 25 cms deep on the base of the tank is 10 g/sq. cm. What will be the pressure when the depth is 16 g/sq. cm 20 g/sq. cm 18 g/sq. cm
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