[" Half life of "14C" is about: "],[" 2000years "],[" 5730years "],[" 5730months "],[" 2000months "]

The average age of a batch of 19 members is 24 years. If the age of the faculty be included, then the average increased by 4 months. What is the age of the faculty? A 35 years B 30 years 8 months C 37 years 4 months D. 32 years 8 months

The half- life for decay of ""^(14)C by beta -emission is 5730 years. The fraction of ""^14C decays, in a sample that is 22.920 years old, would be :

A sum of money trebles itself in 15 years 6 months. In how many years would it double itself? (a) 6 years 3 months (b) 7 years 9 months (c) 8 years 3 months (d) 9 years 6 months

The half-life for decay of ""^(14)C by beta -emission is 5730 years. The fraction of ""^(14)C decays, in a sample that is 22,920 years old, would be

The average age of 30 students in a class is 15 years. If 6 students of this class have the average age of 16 years, then the average age of the remaining 24 students would be (a) 14 years (b) 14 years 3 months (c) 14 years 6 months (d) 14 years 9 months

In how many years will a sum of money double at 5% pa compound interest? (A) 15 years 3 months (B)14 years 2 months (D)15 years 2 months (c) 14 years 3 months

In how many years will a sum of money double itself at 18.75% per annum simple interest? (a) 4 years 5 months (b) 5 years 4 months (c) 6 years 2 months (d) 6 years 5 months

Half life for radioactive ""^(14)C is years. In how many years, 200 mg of ""^(14)C sample will be reduced to 25 mg ?