Let number of questions with right answers = x ∴ No. of questions with wrong answers = 200 – x ∴ Marks obtained for right answers = 2x ∴ Marks deducted for wrong answers = 200 – x ∴ 2x - (200 – x) = 97⇒ 3x = 200 + 97 ⇒ 3x = 297 ∴ x = 99 ∴ No. of questions with wrong answers (200 – 99) = 101
96 litres mixture of milk and water is mixed in an empty container in the ratio 5:3, respectively. If 24 litres of mixture is replaced with 24 litres of...
450 ml of a mixture contains milk and water in the ratio of 15 respectively. If 70 ml of water and 80 ml of milk are added into it, then the ratio of mi...
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...
If 50L of liquid containing 20% spirit is added with 15L of water, then what would be the percentage of spirit in the resulting mixture?
Quantity of water in a 360 litres mixture (alcohol + water) is 20 litres less than the quantity of alcohol in it. Find the quantity of water to be mixed...
In 108 litres of a mixture (milk + water), ratio of quantity of milk to that of water in a mixture is 5:4, respectively. (2x + 8.4) litres of milk and 2...
In a mixture of milk & water, 82 litres water is mixed due to which ratio changes from 3 : 4 to 1 : 2. Find initial quantity of mixture. (in litres)
Vessel contains 40 liters wine. If x liters of wine is taken out and replaced with water, this process is repeated two more times and then quantity of ...
In a total 80-liter mixture of milk and water, there is 25% milk. How many liters of water should be added so that the quantity of milk in the mixture b...
Quantity of water in a 300 litres mixture (alcohol + water) is 40 litres less than the quantity of alcohol in it. Find the quantity of water to be mixed...
