Question

Rajan purchased 250 packets of blades at the rate of 8 per packet. He sold 70%
of the packets at the rate of 11 per packet and remaining packets at the rate of
9 per packet. Find his gain per cent.​

Answer 1

Answer:

30%

Step-by-step explanation:

total C.P.=250*8=rs.2000

70%of total packets=70/100*250=175

S.P. of 175 packets=11*175=rs.1925

S.P. of remaining packets=75*9=rs.675

total S.P.=rs.2600

gain=rs.600

gain %=600/2000*100

          =30%

Answer 2

$\huge \pink{ \boxed{ \boxed{ \mathfrak{solution}}}}$

cp=250×8

=₹2000(actual cp)

$\blue{70\% \: of \: 250}$

$\pink{ \frac{70}{100} \times 250}$

$\blue{7 \times 25}$

$\pink{ = 175}$

$\blue {sp \: of \: 175 \: packets = 175 \times 11}$

$\pink{ = 1925}$

$\blue \therefore \blue{30\%of \: 250 = 250 - 175}$

$\pink{ = 75}$

$\blue{sp \: of \: 75 \: packets = 75 \times 9}$

$\pink{ = 675}$

$\huge \green{ \underline{ \underline{now}}}$

$\blue{total \: sp = 1925 + 675}$

$\pink { = 2600(actual \: sp)}$

$\orange{ \boxed{profit = sp - cp}}$

$\blue{2600 - 2000}$

$\pink{ = 600}$

$\red{ \boxed{profit\% = \frac{profit}{cp} \times 100}}$

$\blue \implies{profit\% = \frac{600}{2000} \times 100}$

$\implies \: profit\% = 30\%$

$\huge\purple{\fbox{\fbox{\pink{♡fruti♡}}}}$