Question

Two adjacent faces of a cube are coloured Red. The faces opposite
to red coloured faces are black coloured. All other faces are Green. This cube is
further cut into 64 equal smaller cubes. With this information give answer of the
questions.
.
48. ਕਿੰਨੇ ਘਣ ਅਜਿਹੇ ਹਨ ਜਿਨ੍ਹਾਂ ਦਾ ਕੋਈ ਪਾਸਾ ਨਹੀਂ ਰੰਗਿਆ ਹੋਇਆ?
How many cubes are there with no face coloured?
(a) 0 (b) 8 (c)4 (d)16
49. ਕਿੰਨੇ ਘਣ ਅਜਿਹੇ ਹਨ ਜਿਨ੍ਹਾਂ ਦੇ ਤਿੰਨ ਪਾਸੇ ਰੰਗੇ ਹੈ?
How many such cubes are there which have three colouredfaces?
(a) 0 (b) 8 (c)4 (d)16
50. ਕਿੰਨੇ ਘਣ ਅਜਿਹੇ ਹਨ ਜਿਨ੍ਹਾਂ ਦਾ ਇਕ ਪਾਸਾ ਕਾਲਾ ਅਤੇ ਵਿਪਰੀਤ ਪਾਸਾ ਲਾਲ ਹੋਵੇ?
How many such cubes are there whose one face is black and opposite face is red?
(a) 0 (b) 4 (c)8 (d)16​

Answer 1

Answer:

A model of a ship is made to a scale of 1 : 200.

The surface area of the model is 7500 cm .

Calculate the surface area of the ship, giving your answer in square metres