Question

If the selling price is tripled and cost price doubled the profit would become 65%. What is the present profit (in %)?​

Answer 1

Answer:

Let cost price be C and selling price be S therefore ((3s-2c)/2c)*100=65

Or 3s/2c=1.65

Or s/c=1.1

Present profit=(1.1-1)×100=10

Ans will 10

Step-by-step explanation:

Answer 2

Answer:

The present profit percentage is 10 %

Step-by-step explanation:

Given as :

The selling price is tripled

The cost price price is doubles

Let The selling price = s.p

Let The cost price = c.p

When selling price triple

s.p' = 3 s.p

When cost price double

c.p' = 2 c.p

So, percentage profit = p = 65%

∵ profit % = $\dfrac{s.p - c.p}{c.p}$

or, 65% = $\dfrac{s.p' - c.p'}{c.p'}$

Or, 65% = $\dfrac{3 s.p - 2 c.p}{2 c.p}$

Or, 65% = $\dfrac{3 s.p}{2 c.p}$ - 1

Or, $\dfrac{3 s.p}{2 c.p}$ = 1 + 0.65

Or, $\dfrac{3 s.p}{2 c.p}$ = 1.65

Or, $\dfrac{s.p}{c.p}$ × 1.5 = 1.65

Or, $\dfrac{s.p}{c.p}$ = 1.1

Again

∵ $\dfrac{s.p}{c.p}$ = 1.1

Or, $\dfrac{s.p}{c.p}$ - 1 = 1.1 - 1

or, $\dfrac{s.p - c.p}{c.p}$ = 0.1

or, $\dfrac{s.p - c.p}{c.p}$  = 0.1

Or, Profit % = 0.1 × 100 = 10%

So, The present profit percentage =  Profit % = 10 %

Hence, The present profit percentage is 10 % Answer