Let total marks obtained by both of them is x and y respectively. x – y = 12 And, x = 0.55 × (x + y) x = 0.55 × (12 + y + y) x = 0.55 × (12 + 2y) x = 6.6 + 1.1y 12 + y = 6.6 + 1.1y 0.1y = 5.4 y = 54 x = 54 + 12 = 66
155 litres of a mixture contains 42% milk and rest water. If ‘x’ litres of milk is added into the mixture then quantity of water in the final mixtur...
A container has 60 liters of a mixture of milk and water in the ratio of 3:2. How many liters of water should be added to make the ratio 2:3?
190 ml of mixture contains milk and water in the ratio of 10:x respectively. If 30 ml of water and 40 ml of milk is added into it then ratio of milk to ...
A 120 litres mixture contains 40% milk and rest water. How much water should be added to the mixture, such that milk constitutes 25% of the resultant mi...
Two bottles namely P and Q contained pure milk and pure water in the quantity of (a+135) litre and (a-10) litre respectively. If 40% and 36% from bottle...
If 4 kg of metal of which 1/3rd is zinc and the rest is copper, be mixed with 5kg of metal, of which 1/6 is zinc and the rest is copper, then...
Bowl 'P' initially holds 'a' liters of pure petrol. First, 25% of the petrol is removed and replaced with an equal amount of diesel. Subsequently, 40 li...
A 88-litre mixture contains only water and oil in the ratio 6:5, respectively. If 22 litres of the mixture is replaced with the same quantity of oil, th...
7 liters of milk and 3 litres of water is mixed in an empty bucket 'P. In other empty bucket 'Q' six liters of milk is mixed in 1 liter of water 3 liter...
A mixture contains oil and water in the ratio 7:5. When 70% of this mixture is replaced with 153 litres of water, the ratio becomes 8: 13. Than, what wi...
