formulate a pair of linear equation in 2 variables 4 pens and 3 books together cost RS 50 where as 3 pens and five books together cost RS 54
Answers
Answered by
2
Answer:
Let pens be 'x' and books be 'y'
4x + 3y=50 (i) × 3
3x + 3y=54 (ii) ×4
subtracting (i) from (ii),
you will get 11y=66
y = 6
substitute value of y in (i) you will get x = 8
Similar questions