Question

The cost of a book is three times the cost of a notebook. Keshav bought five notebooks and five books for Rs 600. i) Find the cost of one book (    ) a)  30  b) 90  c)  150  d)  450 ii)   Find the cost of five books (   )   a) 30  b) 90   c) 150  d) 450 iii)  Find the cost of one notebook  (    ) a)  30  b)  90  c) 150   d)  450 iv)  Find the cost of five notebooks (   ) a) 30   b) 90    c) 150   d) 450​

Answer 1

Answer:

hope you got your answer ❤️

please do Mark it Brainliest

Answer 2

Answer:

1. cost of one book =90rs
2. cost or 5 books=450rs
3. cost of 1 notebook=30rs
4. cost of 5 notebook=150rs

Step-by-step explanation:

let the cost of one notebook be x

therefore the cost of one book is 3x

according to condition,

5x+5(3x)=600

20x=600

x=30

cost of 1 notebook==>30rs

cost of 1 book==>90rs