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United Nations’ Human Development Index was released recently. Published by the United Nations Development Programme (UNDP), it is a statistical tool used to measure a country’s overall achievement in its social and economic dimensions. The social and economic dimensions of a country are based on the health of people, their level of education attainment and their standard of living. For the first time, the United Nations Development Programme introduced a new metric to reflect the impact caused by each country’s per-capita carbon emissions and its material footprint, which measures the amount of fossil fuels, metals and other resources used to make the goods and services it consumes. This metric is called- the Planetary Pressures-adjusted HDI, or PHDI. India dropped two ranks, standing at 131 out of 189 countries.
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400 litres of mixture X contains acetone and glycerine in the ratio 11:14, respectively. 100 litres of the mixture is withdrawn and labelled as mixture ...
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 holds 80 litres of a solution which has milk and water in the ratio 3:2. 40 litres of this solution is taken out, and then 10 litres of wate...
A container holds a 512 ml mixture of milk and water in a 9:7 ratio. If 'x' ml of water and (x + 36) ml of milk are added, the new ratio of milk to wate...
In a mixture of milk & water, 60 litres water is mixed due to which ratio changes from 3 : 4 to 1 : 2. Find initial quantity of mixture. (in litres)
A container contains 60 liters of a solution containing 25% alcohol. How many liters of pure alcohol must be added to make the alcohol concentration 40%?
In a container, the ratio of milk to water is 9:7. If 32 litres of water is added, the quantities of milk and water become equal. What is the total quan...