Reply
Thu 19 Jan, 2012 12:34 am
1.To get the ratio p:q(for p not equal to q),one has to add to each term of the ratio x:y, the number ?
2.a,b,c,d,e,f,g are consecutive even numbers. j,k,l,m,n are consecutive odd numbers. The average of all numbers is ?
@Debasish,
2. Average of an arithmetic series is middle term.
So Average of first seven =d, average of last 5 =l
So average of all 12 =(7d+5l)/12
Stumble It!
Tweet This
Bookmark on Delicious
Share on Facebook
Share on MySpace