Question
Which part of the atom emits the radioactive
radiation?Solution
The unstable nucleus of radioactive atoms emit radiation. When this occurs, a new atom and element are formed. This process is called radioactive decay.
The average number of sweets distributed in a class of 90 students is 6. If lsquo;xrsquo; number of students newly joined the class and the average beco...
The average age of 12 girls is 35 years. If the age of two more girl is added the average decreases by one and a half year. What is the sum of the age o...
The average number of books on history, polity and geography in a library is 110, and the average number of books on history and geography is 120. If th...
The average weight of 4 persons is 56 kg. The heaviest person’s weight is 30 kg more than the lightest person’s weight. If the average weight of the...
- Kohli smashed 150 runs, contributing 75% of the team’s total. Given that extras amounted to 20 runs, what was the total contribution from the rest of the...
If average of first 10 numbers is (n – 23) and the sum of remaining number is 925. Find the value of ‘n’, if the average of 20 numbers is ‘n’....
The average daily income of 7 men, 11 women and 2 boys is Rs.257.50. If the average daily income of the men is Rs.10 more than that of women and the ave...
The average weight of three men is increased by 5 kg when one of them, whose weight is 100 kg is replaced by another man. What is the weight of the new ...
A team consists of a certain number of members. If 4 people with an average weight of 65 kg leave the team, the average weight of the remaining members ...
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...
Relevant for Exams:
