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Rate downstream = 7/10 x 60 = 42 km/hr Rate upstream = 42/2 = 21 km/hr Speed of current = 1/2 (Rate downstream – Rate upstream) ⇒ 1/2 (42 – 21) km/hr = 10.5 km/hr
In a mixture of milk & water, 75 litres water is mixed due to which ratio changes from 3 : 4 to 1 : 2. Find initial quantity of mixture. (in litres)
A mixture weighing 600 grams consists of sand and cement in a ratio of 3:7. If an additional 20 grams of sand and 80 grams of cement are added to it, wh...
A jar contains a mixture of milk and water in the ratio 10:3, respectively. If 8-litres of the mixture is taken out, then the quantity of water left in ...
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 vessel is completely filled with milk. If 42% of the milk is replaced with water then only 232 ml of milk will be left in the vessel. What is the tota...
Jar 'A' contains 320 liters of a milk and water mixture, with 3/4th of it being milk and the rest being water. 25% of this mixture is transferred to Ja...
A vessel contains milk and water in which 20% is water. 80 litres of mixture was taken out and replaced by water and the ratio becomes 4:5. Find the ini...
Rice at Rs 80/kg is mixed with rice at Rs.40/ kg in a certain ratio such that by selling the mixture at Rs.60/ kg profit of 20% is made. If the quantity...
A container has only two types (P and Q) of oil in the ratio 7:3 respectively. When 80 litre of oil Q is added to the container the quantity of oil P...
