406,000 increased 19%

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16