Question

The ratio of cost of bottle and lunch box are 13 : 7. The cost of bottle is rs.300 more than cost of lunch box. What is the cost of lunch box (in rs.)?

Answer 1

Answer:

Cost of lunch box = 350 Rs

Step-by-step explanation:

Given that-

The ratio of cost of bottle and lunch = 13 : 7

Let cost of bottle = 13x Rs

Cost of lunch box = 7x Rs

According to question-

The cost of bottle is 300 Rs more than the cost of lunch box.

e.g     13x = 7x + 300

13x - 7x = 300

6x = 300

$x = \dfrac{300}{6}$

x = 50

So, cost of bottle = 13x

                            = 13×50

Cost of bottle = 650 Rs

Cost of lunch box = 7x

                              = 7×50

Cost of lunch box = 350 Rs