Question

If the cost of a book is 12 more than athe cost of a pen . if the cost of a pen is taken as x what is the cost of book? if the total cost is 28 rupees find the cost of pen

Answer 1

Answer:

cost of pen is ₹8

Step-by-step explanation:

If we take x as cost of pen then according to question sum of pen and book is ₹28, so the equation will be 》x + x+12 = 28

》2x + 12 = 28

》2x = 28-12

》2x = 16

》x = 16÷2

》x = 8