Question

If 14 books cost $67.90, what do 3 books cost?
If 6 pens cost $8.70, what do 5 pens cost?​

Answer 1

Answer:

COST OF 3 BOOKS IS $14.55.

COST OF 5 PENS IS $7.25

Step-by-step explanation:

GIVEN : Cost of 14 books is $67.90.

Cost of 6 pens is $8.70.

TO FIND : Cost of 3 books & Cost of 5 pens.

So, let's find it,,

As we know that,

Cost of 14 books = $67.90

; cost for per book = $67.90/14.

= $4.85.

Then, cost for 3 books = 3 × $4.85.

= $14.55.

And we also know that,,

Cost of 6 pens = $8.70.

: cost for per pen = $8.70/6.

= $1.45.

Then, cost for 5 pens = 5 × $1.45.

= $7.25

HOPE IT WILL BE HELPFUL!!..