Question

15. In a cinema hall, 300 tickets were sold. The
total sale of the tickets was 1250. If the
tickets were of two denominations of 2.50
and 5.00, how many of each denomination
were sold?​

Answer 1

Answer:

1. Outer space is not completely empty—it is a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays.