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I. 12x2- 27x - 28x + 63 = 0 3x(4x - 9) - 7(4x - 9) = 0 (3x - 7) (4x - 9) = 0 x = 9/4, 7/3 II. 10y2- 47y + 55 = 0 10y2- 22y - 25y + 55 = 0 2y (5y - 11) - 5(5y - 11) = 0 (2y - 5)(5y - 11) = 0 y = 5/2, 11/5 Hence, relationship cannot be established between x and y.
The cost of 3 kg of rice is Rs. 180. The cost of 8 kg of rice is equal to that of 5 kg of pulse. The cost of 15 kg of pulses is equal to that of 2 kg of...
A container contains Alcohol and water in ratio of 2:1 and Capacity of Container is 66 lit. If half of the Container is replaced with 20 lit of water th...
The ratio of Petrol and Diesel in the container is 3:2 when 20 litres of the mixture is taken out and is replaced by the diesel. The ratio becomes 2:3. ...
Mixture 'A' consists of milk and water in a ratio of 7:8, while mixture 'B' contains milk and water in a ratio of 3:2. When these two mixtures are combi...
An alloy of artificial gold contains 83% Copper and remaining Aluminium. In an another alloy, Copper is 91% and Aluminium is 7%. In what ratio should th...
One alloy of steel contains 74% Iron and 26% carbon. Another alloy contains 81% Iron and 12% carbon. Later, they are mixed, so that the mixture contains...
A mixture is prepared by combining three ingredients M, N, and O in the ratio of 5:4:3. Ingredient M contains 60% sugar, N contains 50% sugar, and O con...
A mixture (acetone and water) contains 40% acetone and rest 96 litres water. How much acetone should be added to the mixture to make the ratio of aceton...
The Jar contains only 8 litres of milk and the rest is water. A new mixture in which concentration of milk is 30%, is to be formed by replacing the Jar ...
A Vessel if full of milk, 7 litre of milk is taken out and replaced by water. This process is repeated once more, find the initial amount of milk in the...