Question

Q1. Express the following as an algebraic expression. a. Savitri has a sum of Rs. x. She spent Rs. 1000 on grocery, Rs. 500 on clothes and Rs. 400 on education, and received Rs. 200 as a gift. How much money (in Rs.) is left with her? b. x multiplied by 2 and then subtracted from 3. c. Kanta has p pencils in her box. She puts q more pencils in the box. Find the total number of pencils she has.​

Answer 1

Answer:

a. Given amount Savitri has = x.
She spent Rs. 1000 on groceries, so x-1000.
She spent Rs. 500 on clothes, so x - (1000+500)
She spent Rs. 400 on education so, x - (1000+500+400)
She received Rs. 200 as gift. so x - (1000+500+400) + 200.

= x - 1,900 + 200
= x - 2,100.

Therefore, Savitri has Rs. x - 2100 left with her.

b. 3 - (x * 2) or 3 - 2x.

c. (p + q) pencils.