How many water molecules are released in the synthesis of 10 maltose and 15 sucrose?

10 water molecules are released in the synthesis of 10 maltose and 15 water molecules are released in the synthesis of 15 sucrose.

Explanation:

10 water molecules are released in the synthesis of 10 molecules of maltose and 15 water molecules are released in the synthesis of  15 molecules of sucrose because in a reaction, when two glucose molecules fuse together forming a molecule of maltose with the release of single water molecule while on the other hand, when glucose and fructose fuse together forming sucrose releases single molecule of water, so in each case, one molecule of water is produce.

Yes your correct! A leaf is a tissue :D