Question
Water gets cooled, when ice is immersed in it, this
phenomenon is known asSolution
When ice is immersed in water it starts melting. It takes latent heat from water for melting and the temperature of the water decreases, therefore water becomes cool.
- A city experienced an average rainfall of 125 cm over the first five days of a week, while the last five days recorded an average of 132 cm. If the average...
Sum of ages of 90 players is 2250 years. The average age of 30 of them is 20 years and average age of another 30 of them is 15 years. Find the average a...
In an examination, the average marks obtained by the students is 40. After correcting the quantitative mistakes, the average of 50 students is reduced t...
The average of six numbers is 82. When two more numbers are included, the average increases by 4. Find the average of the numbers included.
The average weight of 4 persons is 33 kg. The heaviest person’s weight is 30 kg more than the lightest person’s weight. If the average weight of the...
A cricketer had a batting average of x runs in the first 18 matches. In the next 6 matches, he scored an average of 60 runs. His overall average increas...
The average expenditure of a man for the first 8 month is Rs.4000 and for the next 4 months is Rs.6000. If he saves 10000 in that year then find his ave...
Average marks scored by Vineet in five subjects are 85. The average marks scored by him (excluding his highest and lowest marks) are 65 and lowest marks...
A mixture contains oil and water in the ratio 7:5. When 70% of this mixture is replaced with 153 litres of water, the ratio becomes 8: 13. Than, what wi...
Average weight of each student, in a class of 70 students, is 86kg. If the ratio of number of boys and girls in the class is 4:3, respectively and avera...
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