Question

a The cost of a pen is 25.35 Find the cost of 45 such pens?​

Answer 1

Here we are given the cost of one pen

Ans we have to find the cost of 45 pens

To determine the cost of 45 pens we will have to use the unitary method

Cost of 1 pen = 25.35

∴cost of 45 pens = 25.35 × 45

                             = 1140.75

The cost of 45 pens will be rupees 1140.75

Answer 2

• As per the given data in the question, we have to find the cost price of $45$ pens.
• Given data:- Price of single pen=$25.35.$
• Solution,

• Here we will apply the unitary method to find the cost of $45$ pens.
• So, we will multiply per pen cost by $45$ number of pens, so we will get the cost of such pens,

        $=25.35\times45=1140.75$

       The cost price of $45$ pens will be $1140.75.$