In a library 136 copies of a certain book require a shelf-length of 3.4 metre. How many copies of the same book would occupy a shelf length of 5.1 metres?
Let the number of copies be 
Self – length (m) | 3.4 | 5.1 |
No of copies | 136 |
|
On cross multiplication, we get
Therefore number of copies is 204
13