Total # Posts: 4
A man is 9 times older than his son, 15 years later he will be only thrice as old as his son. What is man's present age?
January 28, 2017
If the ninety term of an A.P is 30, find the Sum of its first seventeen terms
November 23, 2016
when an accident happens in the sea due to collision of ships, there is a huge amount of oil spill in the sea .how does this affect of eco system?what spices of the marine life are affected by it and how?
December 24, 2012
calculate the density of oxygen at STP?
December 1, 2008