Question

Tiny has q pencils in his geometry box. He has 10q pencils in his cupboard.

Answer 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?

10 + r

10r

10 – r

r

Which of the following is expression with one variable?

x + y + z

y + 1

1

x + y – 5

The length of a rectangular hall is 4 meters less than 3 times the breadth of the hall. What is the length, if the breadth is b meters?

12b

3b – 4

None of these

3b + 4