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

Answer:

let the cost of notebook be x

let the cost of pen be y

so first equation will be-

20x+25y=1255

second equation will be-

38x+30y=2122

now u are having 2 eqs so u can solve them by substituting them or eliminating them..

hope u got yr ans ..

wish u a good day and all the best for yr upcoming exams

Answer 2

Let,

cost of gel pen = x

cost of notebook = y

Then,

i) 25 x + 20 y = 1255

ii) 30 x + 38 y = 2122.