Answer:

Step-by-step explanation:
We can set up the following proportion and solve for length (
):

Take your pick of the ways shown in the attachment.
Yes it is because you are saving $30 if the trip is $10 each way
Think of two lines BE and AD that intersect at C and makes triangles BAC and EDC since angles BCA and ECD are equal by opposite angle thereom. and given BC=EC, CA=CD there the triangles are equal and side BA=ED
First you need to divide ₹134 by 12 to find the cost of each pen.

Multiply the cost of each pen by 5 to find the cost of 5 pens.

≈ ₹55.8 (correct to 1 decimal place)