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Let actual marks scored by A and B be 12x and 7x respectively. Difference between the marks scored by A and B = 12x – 7x = 5x According to question, => (7x + 6) × 1.2 = 12x => 8.4x + 7.2 = 12x => 3.6x = 7.2 => x = 2 Required difference = 5x = 10
A jar contains a mixture of mango juice and water in the ratio of 5:2. 84 litres of the mixture was taken out and 34 litres of water was added to it. If...
A boat takes 12 hours to cover 's' km in still water. While traveling downstream, it takes 8 hours to cover (s - 32) km. If the speed of the boat in sti...
In a mixture of milk & water, 45 litres water is mixed due to which ratio changes from 3 : 4 to 1 : 3. Find initial quantity of mixture. (in litres)
161 litres mixture of milk and water is mixed in an empty container in the ratio 5:2, respectively. If 14 litres of mixture is replaced with 14 litres o...
A tank initially contains a water-alcohol mixture in a 7:3 ratio. After removing 20 liters of the mixture and replacing it with pure alcohol, the ratio ...
A 270 litres mixture of mango juice and lemon juice contains mango juice and lemon juice in the ratio of 7:2. How much lemon juice should be added to th...
A chemist prepared 50 grams of a medicine by mixing two ingredients P and 'Q, Rate of 'P' is ₹150 per 10 gm and that of 'Q' is ₹ 500 per 100 gm. 'P'...
In a Glass there is 520 ml of a mixture composed of juice and water in a ratio of 17:9. If 'y' ml of juice and 'y + 60' ml of water are added to this mi...
