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In this superbly argued book, data scientist Nilakantan RS shows us how and why the southern states are outperforming the rest of the country and its consequences in an increasingly centralized India.
In a mixture of 45 litres, the ratio of wine to water is 2 : 3. If this ratio is to be 1 : 3, then what is the quantity of water needed to be added?
Containers A and B hold mixtures of honey and water in the ratios of 3:2 and 9:11, respectively. If 12 liters from container A and 24 liters from contai...
A trader mixes three types of fruit juices. Juice A costs $10 per liter, Juice B costs $15 per liter, and Juice C costs $20 per liter. The mixture is so...
A milkman mixed milk and water in an empty container in the ratio 12:7. The quantity of milk mixed was bought by the milkman at the rate of Rs. 37/litre...
There is 135 litres of mixture of milk and water in a jar. The ratio of quantity of milk to water in the jar is 4:3, respectively. If ‘x’ litres of ...
A factory has a mixture containing 60% iron and 40% copper. If 20 kg of copper is added, resulting in a mixture that is 50% iron, what was the initial w...
Three mixtures: A, B, and C containing 35%, 55%, and X% of water, respectively. If all these mixtures are mixed in the ratio of 2:2:1 to form a resultan...
A mixture contains ‘x’% milk. 20% of this mixture is taken out and is replaced with same quantity of water. This procedure is repeated two more time...
A 210 litres mixture contains only water and phenyl in the ratio 3:4, respectively. If 70 litres of this mixture is replaced with 25 litres of alcohol, ...