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• ### [Maths] Question on tiling :D ?

A hall has a square floor of 16m 50cm.

Square tiles of length 30 cm are used to cover the floor completely.

The tiles are of two colours: red and blue.

The tiles are placed in rows.

In each row, red and blue tiles are placed alternately (that is a red tile, then a blue tile, then a red tile, then a blue tile and so on).

Each row starts with a red tile.

How many red tiles are used in total?

• ### Maths question that I need help with?

X takes 30 minutes to clean the yard. Y takes 50 minutes to clean the yard. How much time do they take to clean the same yard?

• ### What are some animals which are different from others?

Hello, I need some help. I want some information about animals which are classified as something but they have particular features and characteristics that make them different from others. Like for example, the platypus is the only mammal which lays eggs instead of giving birth. Please, and thank you! I need it for a Biology project, I have it halfway done but I still need some more but I'm out of ideas. Thank you for your time!

• ### Maths Question [Sequence]?

1 , 2, __, __, 14 , 28

I have tried this sequence lots of times but couldn't get it... Anyone can help? Or is the sequence just mistypes or something?