Question

Solve the following:
1) If two pens and three pencils cost Rs.35 and three pens and two pencils cost Rs. 40 then find the cost of three pens and four pencils.​

Answer 1

Answer:

50

Step-by-step explanation:

consider pen as x and pencil as y

then

2x+3y=35

3x+2y=40

solve these equations will get x=10 and y=5

so for 1 pen it costs 10 rs

///ly for 1 pencil it costs 5 rs

they are asking for 3 pens and 4 pencils

so 3(10)+4(5)=50