So the Adams family consists of 2 adults and 2 children. We know that all-day ticket for an adult is £8. Therefore the price for 2 adults would be:£8 x2 = £16. We also know that an all-day ticket for a child is £5. Therefore the price for 2 children would be: £5 x 2 = £10. They also buy 4 ice-creams which cost £1.95 each therefore the cost of that would be: £1.95 x 4 = £7.80.Thus the total cost would be all of those costs added together.£16 + £10 + £7.80 = £33.80.