Question

if the cost price of 10 pencils is equal to the spelling price of 8 pencils . find gain or loss pencent​

Answer 1

Answer:

Step-by-step explanation:

CP OF 10 PENCILS=SP OF 8 PENCILS

LET THE CP OF 1 PENCIL BE ₹1

CP OF 10 PENCILS = ₹10

SP OF 8 PENCILS = ₹10

SP OF 1 PENCIL = ₹ 10/8 = ₹ 5/4

SP>CP

PROFIT = SP-CP

= 5/4 -1

= ₹1/4

PROFIT % =PROFIT/CP×100

= 1/4/1×100

= 25%

Answer 2

Let CP of 1 pen be Re. 1

CP of 10 pen is Rs. 10

SP of 8 pen is Rs. 10

SP of 1 pen is Rs. 1.25

Gain is 0.25

Gain per cent is 25 per cent

i.e.

$\frac{0.25}{1} \times 100\%$