Question
The cost price of 27 headsets equals the selling price
of 18 headsets. The ratio of the cost price of a headset to a cover is 9:8. The total selling price of 9 headsets and 9 covers is Rs.2250. Each cover is sold at a 12.5% profit. Find the cost price of one headset.Solution
ATQ,
27a = 18b → a/b = 2/3 CP = 2x SP = 3x CP cover = 2x × 8/9 = 16x/9 SP cover = 16x/9 × 112.5/100 = 2x 9×3x + 9×2x = 27x + 18x = 45x = 2250 x = 2250/45 = 50 CP of one headset = 2x = Rs.100
What type of image is always formed by a convex mirror?
Which physical property causes raindrops to form spherical shapes?
Which of the following dyes is used for colouring Paper and typewriters?
This relationship between the angles of incidence and refraction and the indices of refraction of the two media is known as ________.
Which law is also called the law of inertia?
Vivek was walking in the park. On the way he found a stone lying. He picked the stone and threw it up in the sky. After few seconds, he observed that th...
A rear-view mirror for driving is –
The Dimensions of “G” (Universal Gravitation Constant) is:
What is the cause of hypermetropia?
Water gets cooled, when ice is immersed in it. It is because of the phenomenon of
Relevant for Exams:
