The price of a pen is Rs 42 and of the notebook is Rs 18. Calculate how many pens and notebooks you can buy for Rs 480 in equal quantity?

(A) 8, 8

(B) 9, 9

(C) 7, 7

(D) 6, 6

8 book and 8 pens

Step-by-step explanation:

x – quantity of pens and notebooks

x*42+x*18=480

x(42+18)=480

60x=480

x=480/60=8