Josh the postmen has eleven red rubber bands. He gives Sunita three bands. Sunita now has twice the number of bands Josh has left. How many bands did Sunita have at the beginning?

13

Explanation:

We know that Josh starts with 11 rubber bands and gives away 3. This means that he now has 8 left (11-3=8). Sunita now has the extra 3 which means she now has twice the amount Josh has left. Since we know Josh has 8 left, we can work out that Sunita now has 16 (8x2=16). However this is not how many she had at the beginning as she recieved 3 from Josh. Therefore we can subtract 3 from her current number (16) to find here original number:

16-3= 13

Sunita had 13 rubber bands at the beginning.

Hope this helped!

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.