given that carbon decays at a constant rate in a such a way that
it reduces to 20% in 1562 years. the age of the wooden piece in
which the carbon is only 4% of the original given that carbon-14
decays at a constant rate in such a way that it reduced to 25%
in 1244 years.. find the age of the tree in which the carbon is
only 6.25% of the original the simple interest and compound
interest on a certain sum for 2 years are rs. 800 and rs. 880
respectively. the rate of interest (in % p.a.) on both the sums
is the same. if the interest on the sum lent at compound
interest is compounded annually, find the rate of interest (in %
p.a.) A man wants to divide rs.145000 between his son and
daughter who are 12 years and 14 years respectively, in such a
way that the sum invested at the rate of 25/3% per annum
compounded annually will give the same amount to each, when they
attain 16 years. how should he divide the sum A man invested
one-fifth of the capital at 5% p.a., one - sixth of the capital
at 6% p.a., and the rest at