How much will it cost for two adults and children to go into Madame tussauds the Planetarium?

- Adult: £32

- Child: £27

The Planetarium:

- Adult: £12

- Child: £9

For two adults and three children, the total cost for Madame Tussauds would be 2 x £32 + 3 x £27 = £149

The total cost for The Planetarium would be 2 x £12 + 3 x £9 = £45

Therefore the grand total is £149 + £45 = £194.