Question

Sunita sold a book at 300. At what price she must have bought the book so that
she gains 20% by selling it?​

Answer 1

Answer:

20% of ₹300

= ₹(20/100 × 300)

= ₹60

₹300-₹60=₹240

therefore, she had bought it of ₹240 so when she sold it she gains 20%.

Answer 2

Step-by-step explanation:

$cost \: price \: = sp \times \frac{100}{(100 + gain\%)} \\ cp = 300 \times \frac{100 }{(100 + 20)} \\cp = 300 \times \frac{100}{120} \\ cp= 250$

Pls Mark this answer as the brainliest