Question

a pen set having two pens costs ₹250. if it is known one pen costs 3/2 times that of the other find the cost of each pen separately​

Answer 1

Step-by-step explanation:

Let one cost be x and other y

x + y = 250

x = 3/2y

So, now the equation is

3/2y + y = 250

(3/2 + 1)y = 250

3/2 + 1 y = 5/2y

5/2y = 250

y = 250×2/5

y = 25 × 2

y = 50

x = 250 - 50

x = 200