Question

Students perform a simple activity to produce very little sound by
rubbing the table or gently tapping on the table by putting his/her
ear on to the same table and try to hear the sound (will be able to
hear) & also ask the students to recall the concept of arrangement
of atoms in solid, liquid and gas and to understand the relation
between arrangement of atoms in these mediums and ask them to
make connections how speed of sound in these mediums will
be & write there Inference in their journals.​

Answer 1

Answer:

11+22+33+44+55+66+77+88+99+110=605