Question

The cost of a mouse is Rs. 100 less than 1.5 times the cost of a keyboard. If the cost of keyboard is Rs. 400, the cost of mouse would be_______. ​

Answer 1

Let the cost of mouse be x

ATQ

x = 100 - 1.5 of 400

x = 100 - 15/100 × 400

x = 100 - 60 = 40rs

Thus,cost of the mouse is 40rs.

Answer 2

Answer:

★ Rs 500 ★

Step-by-step explanation:

Given:

• Cost of mouse is Rs 100 less than 1.5 times of cost of a keyboard
• Cost of keyboard is Rs 400

To Find:

• Cost of mouse

Solution:

A/q,

• Cost of mouse = 1.5 of 400 – 100

∴ Cost of mouse = 15/10 x 400 – 100

→ 600 – 100

→ 500

Hence, Cost of mouse is Rs 500