Speed of boat ‘A’ in still water = 150/15 = 10 km/hr Speed of boat ‘B’ in still water = 10 × (1/5) = 2 km/hr Downstream speed of boat ‘B’ = 2 + 3 = 5 km/hr Time taken by boat ‘B’ to cover 60 km in downstream = 60/5 = 12 hours
How much soda should be mixed with 20 kg of sugar cost Rs.30/kg so that a gain of 20% can be made after selling the mixture at Rs.24/kg?
The ratio of liquor and soda in a mixture of 70 liters is 3:2. How much liquor should be mixed to make the ratio 7:4?
A rectangle with a length of 16 cm and breadth of 8 cm is rolled through its length to form a hollow cylinder. What will be the volume (in cm³) of the ...
On reducing the marked price of his goods by ₹28, a shopkeeper gains 20%. If the cost price of the article be ₹560 and it is sold at the marked pric...
Cost of two types of pulses is Rs.18 and Rs, 23 per kg, respectively. If both the pulses are mixed together in the ratio 2:3, then what should be the pr...
A petrol pump has a blend of 40 liters of petrol and diesel in the ratio of 5:3. After selling 16 liters of the mixture, 12 liters of petrol are added t...
Simplify the following expression:
The average age of a group of six children is 8 years. From the group, two children, whose ages were 2 years more and 4 years more than the average age,...
A jar initially contains a certain quantity of buttermilk. After removing 8 liters of the mixture and replacing it with cream, this process is repeated ...
Two containers have mixtures of milk and water, respectively, in the ratio 1:4 and 7:4 in what ratio should the contents be mixed so that the ratio of m...
