Question

Cost of 5 books and 4 note books is 100. If
the cost of one book is Rs. 12, find the cost of
one note book.​

Answer 1

Answer:

cost of 1 book =₹12

5 book cost =12×5=₹60

then ₹40 left

4 note book=40÷4=₹10

1 note book =₹10

.

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Answer 2

$Cost \: of \: 1 \: note book = Rs12</p><p> </p><p> </p><p>$

$</p><p> Therefore \: \: cost \: \: of \: \: 4 \: \: note book=4×12</p><p> =48</p><p>$

$</p><p>Therefore \: \: \: total \: \: \: cost \: \: \: of \: \: 5 \: books =rs 100-48=52</p><p>$

$</p><p>Cost of each book = </p><p>52/5</p><p></p><p></p><p>$

$= 10.04$