Question

5. Nandlal bought 20 dozen notebooks at 156 per dozen. He sold 8 dozens of them at 10% gain and
the remaining 12 dozens at 20% gain. What is his gain per cent in the whole transaction?​

Answer 1

Answer:

Here is the answer

Step-by-step explanation:

Nandlal bought 20 dozen Notebooks at Rs.156 per dozen

Total purchasing price =156×20

=3120

He sold 8 dozen at 10% profit + 12 dozen at 20% profit

[156×8+

100

156×8×10

]+[156×12+

100

156×12×20

]

⇒1248+

10

1248

+1872+

10

3744

⇒

10

3120+1248+3744

⇒3619.20

So selling price =3619.2

profit = selling price -purchasing price

=3619.2−3120

=499.2

profit %=

3120

499.2×100

=16% Ans

Answer 2

Answer:

16%

Step-by-step explanation:

156*20 = 3120

8 dozen = 156*8 = 1248

12 dozen = 156*12 = 1872

10% of 1248 = 124.8

20% of 1872 = 374.4

124.8 + 374.4 = 499.2

therefore gain percent i whole transaction is 16%

Hope you got it