Question

12 दर्जन पेनो का मूल्य 720 रुपए है तो 25 पेनों का मूल्य

Answer 1

Given:

12 दर्जन पेनो का मूल्य 720 रुपए है तो 25 पेनों का मूल्य?

To find:

25 पेनों का मूल्य?

Solution:

We know,

$\boxed{\bold{1 \:dozen = 12}}$

So,

12 dozen = 12 × 12 = 144

The cost of 12 dozen i.e., 144 pens is given as = Rs. 720

∴ The cost of 1 pen = $\frac{720 }{144} = Rs. \:5$

Now,

The cost of 25 pens will be,

= 25 × [Cost of 1 pen]

= 25 × Rs. 5

= Rs. 125

Thus, 25 पेनों का मूल्य है → Rs. 125.

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