Question

1) Radha is drawing a dot Rangoli (a beautiful pattern of lines joining dots with chalk powder. She has 10 dots in a row. How many dots will her Rangoli have for r rows?

Answer 1

The number of dots in r number of rows is 10r

From the question, we understand that:

There are 10 dots in a row

This means that, there will be 10 * 2 dots in 2 rows

There will be 10 * 3 dots in 3 rows

There will be 10 * 4 dots in 4 rows

There will be 10 * r dots in r rows

Hence, the number of dots in r number of rows is 10r

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