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Hydrogen is the only element whose isotopes have different names that are in common use today. These are Protium, Deuterium and Tritium. Out of these three isotopes of hydrogen, only tritium is radioactive in nature. Of the hydrogen isotopes, tritium (³H or 1H3) is the only naturally radioactive one.
The average cost of three chairs is Rs.16000. The average cost decrease by 20% when one more chair is included. What is the cost price of the 4th
The average age of 21 children is 30 years. 4 new children, whose average age is 15 years, join them. Find the average age of the 25 children.
There are three categories of jobs HR, CA and PA. The average salary of the student who got the job of HR and CA category is 20 lakhs per annum. The ave...
The average of 25 numbers is 40. If 2 is added to each number, then the new average will be:
The average cost price of 12 pens (having equal cost price) decreased by Rs.2, when one of the pen is replaced by a new pen having cost price of Rs.80. ...
The average of six numbers is 8. When three new numbers are included in such a way that the first number is twice the second and second number is thri...
The average of the present ages of Arun, Mohan, and Deepak together is 30 years. Five years from now, the sum of the ages of Mohan and Deepak will be 66...
The average age of a group of 70 students is 14 years. If three students whose ages are 22years, 20years, ________ years is replaced with three new stud...
The annual production of an article fluctuates. It consistently rises by 25% for two consecutive years, followed by a 20% decline in the third year. In ...
