The cost of 3 Red pens and 7 Blue pens on a day was found to be Rs. 175. Find the correct expression for this situation.

Open in App

Solution

Let the cost of 1 Red pens be 'r'

Let the cost of 1 Blue pens be 'b' $[1 m a r k]$

So, the algebraic expression will be 3r + 7b = 175 $[1 m a r k]$

Suggest Corrections

Similar questions

Raju has $16$ red pens and $4$ blue pens. Find the ratio of red pens to blue pens.

Q. The cost of 3 Red balls and 4 Blue balls on a day was found to be Rs. 140. Then find the correct expression for this situation.

The cost of 2 Red balls and 5 Blue balls on a day was found to be Rs. 160. The correct expression for this situation is

The cost of 2 Red balls and 5 Blue balls was found to be ₹ 160. Assume the cost of one red ball be r and cost of one blue ball be b.The correct expression for this situation is

Rose went to a stationary shop.

She purchased $2$ packs of red pens, $4$ packs of black pens, and $3$ packs of blue pens.

The cost of each pack of pens was $$ 2.50$ .

Find the total amount rose spent on the pens.

Join BYJU'S Learning Program

The cost of 3 Red pens and 7 Blue pens on a day was found to be Rs. 175. Find the correct expression for this situation.

Let the cost of 1 Red pens be 'r' Let the cost of 1 Blue pens be 'b' [1 mark] So, the algebraic expression will be 3r + 7b = 175 [1 mark]

Let the cost of 1 Red pens be 'r'

Let the cost of 1 Blue pens be 'b' $[1 m a r k]$

So, the algebraic expression will be 3r + 7b = 175 $[1 m a r k]$