Question

a vendor bought oranges at 20 for rupees 125 and sold them at 90 rupees per dozen. find his gain or loss per cent

Answer 1

CP of each =6.5
SP of each =7.5
Gain= 20
Gain%=20/125×100 =4×4=16%

Answer 2

Answer:

Gain% = 20%

Step-by-step explanation:

LCM of 20 and 12 = (4*5*3) = 60.

let the number of oranges bought be 60

CP of 20 oranges = Rs 125.

CP of 1 orange = Rs $( \frac{125}{20} )$

CP of 60 oranges = Rs $( \frac{125}{20} \times 60) = Rs 375$

SP of 12 oranges = Rs 90

SP of 1 orange = Rs $(\frac{19}{12} )$

SP of 60 oranges = Rs $( \frac{90}{12} \times 60) = Rs450$

∴ CP = Rs 375 and SP = Rs 450

Since ( SP ) > ( CP ), the vendor gains.

Gain% = $( \frac{Gain}{CP} \times 100)\%$

= $( \frac{75}{375} \times 100)\% = 20\%$