Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Ratios

Question:

The price of silver-biscuit is directly proportional to the square of its weight. A person broke down the silver-biscuit in the ratio of 3: 2: 1, and faces a loss of Rs 4620. Find the initial price of silver-biscuit.

Options:

7520

7530

7450

7560

Correct Answer:

7560

Explanation:

Price of biscuit = ( weight of gold)2

 

               I   :   II   :   III  :  Actual

weight ⇒  3   :   2    :    1   :     6

Price   ⇒  3 :   22   :   12   :    62

          ⇒  9  :   4    :    1     :   36

Now,

Actual Price = 36

Price after break = (9 + 4 + 1) = 14

Loss  = 36 - 14 = 22R

⇒ 22R = 4620 (given)

⇒  1R  =  210

Hence,

Actual Price = 36 × 210 = 7560/-