In an auditorium, 600 tickets were sold. The total sale of tickets was rupees 4250. If the tickets denominations were ₹ 2.5, ₹ 5.0 and ₹ 10.0. how many of each denominations were sold ?
For a science exhibition, tickets for children cost 2 rupees and for adults, 5 rupees. 100 tickets were sold for one show, and 290 rupees was got. How many children were there for this show?