Question

if a cost of 12 pens is rs84,what is the cost of 10 such pens

Answer 1

Step-by-step explanation:

Let the cost of 10 pens be 'x'

12= RS 84

10= x

By cross multiply

12x= 84X10

12x= 840

x= 840

12

x= 70

The cost of 10 pens is Rs70

Answer 2

Answer:

The 10 pen cost is RS 70

Step-by-step explanation:

As per the data in given equation

In above question it is given that

We have find the value of given expression

Given the data in question

12 pens cost is Rs 84

What is the cost of 10 such pens

As we get,

12 pens cost is Rs 84

So, 1 pens cost is =$\frac{84}{12}$

So, 1  pen cost is Rs 7

Then 10 pen cost is   = multiply of 10 pens $\times$ cost of 1 pen

Rs$10\times7\\70$

Hence the 10 pen cost is  Rs 70