Question

if the cost of 15 pencils is 35 what is the cost of 39 pencils​

Answer 1

Answer:

Step-by-step explanation:

cost of 1 pen

35/15

7/3

now

39×7/3

13×7

91

hope it helps yo

Answer 2

Given,

The total 15 pencils cost Rupees 35.

To Find,

The cost price of a total of 39 pencils at the same rate.

Solution,

We will solve this problem with the unitary method which is as follows:

The unitary method is a methodology for solving problems that involve first determining the value of a single unit and then multiplying that value by the required value.

So here,

The cost of 15 pencils is 35.

∴The cost of 1 pencil is $\frac{35}{15}$.

∴The cost of 39 pencils is$\frac{35}{15}$ ×39=91.

Hence, the cost of 39 pencils​ is 91.