Question

by selling a book for rupees 258 bookseller gains 20% for how much should he sell it eat to gain 30%

Answer 1

Price = 258₹
Profit% = 20%

Let's Assume Cost Price = 100₹

Gain% = 20

So Selling Price = 120₹

But the Actual Selling Price = 258₹

= 258 × 100 ÷ 120

= 258 × 5 ÷ 6

= 215 ₹

Now , The Cost Price = 215 ₹

But he wants 30%

Cost Price = 100 ₹
Selling Price = 130 ₹

Cost Price = 215 ₹
Selling Price = ?

= 215 × 130 ÷ 100

= 43 × 13 ÷ 2

= 559 ÷ 2

= 279.5 ₹

Therefore, Selling Price must be 279.5 ₹.

Hope this helps !

Answer 2

Answer:

Book's SP= 258 Rs

Profit: 20%

Now, Let CP be 100 Rs

Gain: 20%

So, SP= 120Rs

But, Real SP: 258Rs

=258*100/120 = 258*5/6 = 43*5 = 215Rs

Now, The CP = 215 Rs

But the Gain is 30% (required)

So, CP = 100 Rs

SP = 130 Rs = 215*100/130 = 2795/10 = 279.5 Rs

So, The Answer should be (or is...)

*Drumroll please*

279.5 Rs!!!

Applaud for the Genius Raghav who's Latias just won the Cleverness Contest in Pokemon Alpha Sapphire!!!

PS: SP is Selling Price, CP is Cost Price