Question

David lost 10% by selling an article for rupees 2700 at what price he would have sold to gain 18%?​

Answer 1

Answer:

Given:-

• David lost 10% by selling an article for rupees 2700

Find:-

• what price he would have sold to gain 18%?

Solution:-

Let CP be 'x'

${ \sf{ \to{ \frac{x - 2700}{x} = \frac{10}{100} }}}$

${ \sf{ \to{1 - \frac{2700}{x} = \frac{1}{10} }}}$

${ \sf{ \to \frac{2700}{x} = \frac{9}{10} {}}}$

${ \to{ \sf{x = 3000}}}$

Now for gaining 18% :-

Let SP be 'y'

${ \sf{ \to{ \frac{y - 3000}{3000} = \frac{18}{100} }}}$

${ \to{ \sf{ \frac{y}{3000} - 1 = \frac{9}{50} }}}$

${ \sf{ \to{ \frac{y}{3000} = \frac{9}{50} + 1 }}}$

${ \sf{ \to{ \frac{y}{3000} = \frac{9 + 50}{50} }}}$

${ \to{ \sf{ \frac{y}{3000} = \frac{59}{50} }}}$

${ \to{ \sf{y = \frac{59}{50} \times 3000}}}$

${ \to{ \sf{y = 59 \times 60}}}$

${ \sf{ \to{y = 3540}}}$

So, At 3540₹ David would have sold to gain 18%.

Answer 2

Step-by-step explanation:

if you dont konw the ans don't post irrelative ans I'm warning you