Directions (set of 5 questions):
Study the given information carefully to answer the questions.
Sidhartha has decided to start a new company ‘Siddharth Travels’. He wants to buy some furniture – table, chair, air-conditioners. He also wants to buy a few desktops which will include monitor, CPU, keyboard and mouse and the cost of each table is 13.5 times the cost of a mouse and the cost of chair is 3/5 of the cost of a table. The cost of an air conditioner is 5 times the cost of a chair. The cost of a monitor is 20% more than the cost of a chair, A CPU costs Rs. 1500 more than a table and the keyboard costs 4 times a mouse. The cost of a mouse is Rs. 1000.
What is the ratio of the cost of a CPU to the total cost of a mouse and a keyboard together?
Solution
Cost of a keyboard = ₹ 1000 × 4 = ₹ 4000
Cost of a table = ₹ 1000 × 13.5 = ₹ 13500
Cost of a CPU = 13500 + 1500 = ₹ 15000.
Reqd ratio =
$\dfrac{Cost~of~a~CPU}{Cost~of~a~(Mouse+Keyboard)}$
= $\dfrac {15000}{1000+4000} = \dfrac {15000}{5000}= 3 : 1$