Question

The cost of pen is twice than the cost of eraser. The cost of both the things is 45 rupees. Find the cost of pen and eraser.​

Answer 1

Answer:-

$\red{\bigstar}$ Cost of the eraser

$\large\leadsto\boxed{\sf{Rs. 15}}$

$\red{\bigstar}$ Cost of the pen

$\large\leadsto\boxed{\sf{Rs. 30}}$

• Given:-

Cost of pen is twice than the cost of eraser.

Cost of both the things = Rs. 45

• To Find:-

Cost of pen and eraser = ?

• Solution:-

Let the cost of eraser be "x".

Given that the cost of pen is twice of that of eraser.

Hence,

The cost of the pen will be 2x

ATQ:-

Cost of eraser + Cost of pen = 45

→ x + 2x = 45

→ 3x = 45

→ x = $\sf{\dfrac{45}{3}}$

→ x = 15

Therefore, the cost of eraser is Rs. 15

and the cost of the pen is 2x = 2 × 15 → Rs. 30