Question
The price of a commodity has risen by 40%, leading to a
25% decrease in the quantity sold. What is the overall impact on total revenue? The following numbers form a series. Find the odd one out.Solution
Let the initial price of the commodity be Rs. ‘10x’ And let number of units sold initially be ‘10y’. So, original revenue = 10x × 10y = Rs. ‘100xy’ New price of the commodity = 10x × 1.4 = Rs. ‘14x’ So, new number of units sold = 10y × 0.75 = Rs. ‘7.5y’ So, new revenue = 14x × 7.5y = Rs. ‘105xy’ So, net change = {(105xy – 100xy)/100xy} × 100 = 5% increaseÂ
- Two numbers are chosen at random without replacement from the set of first 20 natural numbers. Find the probability that both the numbers are even.
A bag contains (K - 2) red balls, 8 black balls, and 14 blue balls. If two balls are drawn randomly, the probability that both are black is 2/27. Calcul...
A bag contains 4 red bands, 4 green bands and 6 blue bands. Two bands are drawn randomly. What is the probability that at most one band is red?
Bag has 7 red, 5 green, 8 blue. Two drawn w/o replacement. Probability both blue?
One five letter word is to be formed taking all letters – U, Z, M, O and Q. What is the probability that this formed word will contain all vowels tog...
A bag contains 7 green balls, 5 blue balls, and 10 yellow balls. A box contains 3 green balls and 8 yellow balls. A ball is randomly drawn from the box ...
A bag contains 7 blue balls, 28 red balls, and 10 green balls. One ball is drawn at random. Find the probability that the ball drawn is either blue or g...
Tokens numbered 1 to 350 are in a bag. What is the probability that the Token drawn has a number which is a multiple of 6 or 7?
A bag contains 6 red balls, 3 blue balls and 3 green balls. If two balls are drawn randomly, find the probability that none of them is blue or green.
A bag contains (2x + y) red taps, 32 black taps and (3x – y) yellow taps. The probability of picking a red tape at random is 4/13 while the probabilit...
Relevant for Exams:
