Question

24. The cost of a pen and a note book is Rs.60. If a cost of a pen is Rs.10 less than the cost of a note book. Then find the cost of each

Answer 1

Gɪᴠᴇɴ:-

The cost of a pen and a note book is Rs.60. If a cost of a pen is Rs.10 less than the cost of a note book.

ᴛᴏ ғɪɴᴅ :-

Cost of Each

sᴏʟᴜᴛɪᴏɴ :-

As given ,

➥ Cost of a pen = Cost of Notebook - 10

➥ Let cost of Notebook be 'x' Rs

Then,

➥ Cost of Pen = x - 10

Now,

• ➲ According to Question :-

➨ x + ( x - 10) = 60

➨ 2x = 60 + 10

➨ 2x = 70

➨ x = 70/2

➨ x = 35

Hence,

• Cost of Notebook = x = 35

• Cost of Pen = x - 10 = 35 - 10 = 25