Question

8. एक गाय ₹ 320 में खरीदी गई. अब वह कितने में बेची जाए
कि 12 1/2प्रतिशत का लाभ हो?
(A) ₹ 340
(B) ₹350
(C) ₹360
(D) ₹390​

Answer 1

Given:

एक गाय ₹ 320 में खरीदी गई |

To find:

वह कितने में बेची जाए कि 12 1/2प्रतिशत का लाभ हो?

Solution:

The cost price of a cow = Rs. 320

The rate of gain = 12$\frac{1}{2}$% = $\frac{25}{2} \%$

We know,

$\boxed{\bold{S.P. = \frac{100 + G\%}{100} \times C.P. }}$

Now, on substituting the given values in the above formula, we get

The selling price of the cow should be,

= $\frac{100 + \frac{25}{2} }{100} \times 320$

= $\frac{100 + 12.5 }{100} \times 320$

= $\frac{112.5 }{100} \times 320$

= $\frac{36000}{100}$

= $\bold{360}$

Thus, in order to make a profit of 12.5%, the selling of the cow should be → Rs. 360.

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