The correct sentences are: While China has double-vaccinated most of its population the booster campaign has only covered around two-thirds of the population. Sustaining optimised protection for a safe, long-term exit of the pandemic will almost certainly require well-timed second booster doses.
120 litres of mixture contains water and milk in the ratio 5:6 respectively. If 32 litres of the mixture is replaced by same quantity of water, then fin...
660 gms mixture contains sugar and rice in the ratio of 4:7 respectively. If 30 gms of sugar and 60 gms of rice are added to the mixture, then calculate...
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...
In a mixture of alcohol & water, 30 litres water is mixed due to which ratio changes from 3:4 to 1:2. Find initial quantity of mixture. (in l...
150 litres of mixture contains water and milk in the ratio 3:5 respectively. If 54 litres of the mixture is replaced by same quantity of water, then fin...
161 litres mixture of milk and water is mixed in an empty container in the ratio 5:2, respectively. If 14 litres of mixture is replaced with 14 litres o...
In a 448 ml mixture, the ratio of copper to gold is 9:5. When 'a + 12' ml of copper and 'a - 10' ml of gold are added to this mixture, the ratio of copp...
140 litres of mixture contains water and milk in the ratio 3:7 respectively. If 40 litres of the mixture is replaced by same quantity of water, then fin...
180 litres of a mixture contains 36% milk and rest water. If ‘x’ litres of milk is added into the mixture then quantity of water in the final mixtur...
In a 150-liter mixture, the ratio of petrol to diesel is 4:1. To obtain a final mixture with 25% diesel, how much diesel needs to be added to the existi...
