Tasha is drawing a dot rangoli. She has 9dots in a row. How many dots will her rangoli have for r rows,..? How many dots are will her rangoli have for r rows,.?if there were 10rows.?

Open in App

Solution

Number of dots in a row = 9

Number of rows is a variable r.

Total number of dots in r rows = number of dots in one row × number of rows

= 9r

Total number of dots in 10 rows = number of dots in one row × number of rows

= 9 × 10 = 90

Suggest Corrections

Similar questions

Q. Radha is drawing a dot Rangoli with chalk powder. She has 9 dots in a row. How many dots will her Rangoli have for r rows ? How many dots are there if there are 8 rows ? If there are 10 rows ?

Radha is drawing a dot Rangoli (a beautiful pattern of lines joining dots with chalk powder. She has 9 dots in a row. How many dots will her Rangoli have for r rows? How many dots are there if there are 8 rows? If there are 10 rows?

Question 7

Radha is drawing a dot Rangoli (a beautiful pattern of lines joining dots with chalk powder as shown in figure). She has 9 dots in a row. How many dots will her Rangoli have for r rows? How many dots are there if there are 8 rows? If there are 10 rows?

Radha is drawing a dot Rangoli (a beautiful pattern of lines joining dots with chalk powder as shown in figure). She has $9$ dots in a row. How many dots will her Rangoli have for $r$ rows? How many dots are there if there are $8$ rows? If there are $10$ rows?

Q. There are 625 dots on a sheet and the number of rows is equal to the number of columns. If the number of rows is reduced by 5 and the number of columns is doubled then how many dots will be there in total?

Join BYJU'S Learning Program

Tasha is drawing a dot rangoli. She has 9dots in a row. How many dots will her rangoli have for r rows,..? How many dots are will her rangoli have for r rows,.?if there were 10rows.?

Number of dots in a row = 9 Number of rows is a variable r. Total number of dots in r rows = number of dots in one row × number of rows = 9r Total number of dots in 10 rows = number of dots in one row × number of rows = 9 × 10 = 90

Number of dots in a row = 9

Number of rows is a variable r.

Total number of dots in r rows = number of dots in one row × number of rows

= 9r

Total number of dots in 10 rows = number of dots in one row × number of rows

= 9 × 10 = 90