Question

A teacher of class X buys 25 gel pens and 20 notebooks for `1255. Later, she buys 38 notebooks and 30 gel pens of same kind for another section for `2122. Represent this situation algebraically.

Answer 1

Let the cost of each gel pen be Rs .x

Let the cost of each notebook be Rs. y

Now.

25x + 20y = 1255

30x + 38y = 2122.

Hope it helps

Answer 2

Let the price of one pen is x rupee and the price of one notebook is y rupee. Then,

from first condition,

25x +20y=1255.

from second condition,

30x + 38y =2122.