Question

one dozen notebooks cost rs186.find the cost of 7 notebooks​

Answer 1

1 dozen notebook = 12 notebooks

CP of 12 notebooks = 186

CP of 1 notebook = 186/12 = 13

CP of 7 notebooks = 13×7=91

then CP Of 7 notebooks = rs91

Answer 2

Answer:

108.5

Step-by-step explanation:

solution------>

Given

• one dozon noote book means 12books price = 186
• we have to find 7 book price

$first \\ \\ cost \: of \: one \: book \\ \\ \frac{186}{12} \\ \\ 15.5 \\ \\ now \: cost \: of \: 7notebook \\ \\ 15.5 \times 7 = 108.5$