An officer ordered 3 computers of brand X and some computers of brand Y. The price of one computer of brand X was thrice that of brand Y. When the order was executed, it was found that the numbers of the two brands has been interchanged. This increased the bill by 50%. Find the ratio of the number of brand X computers to that of brand Y computers in the original order was.
Let the no of computers of brand Y = n and the cost of 1 computer of brand Y = Re. k Original cost of brand Y computer = Rs. kn and original cost of brand X computer = Rs. 3 x 3k = 9k Total original cost = Rs.(kn + 9k) In the case of executed order, Cost of brand X computer = Rs. 3kn And cost of brand Ycomputer = Rs. 3k Total cost of executive order = Rs. (3kn + 3k) As per the question, 150% of (kn+ 9k) = 3kn + 3k 150% of (n+ 9) = 3n + 3 ⇒ 150/100 x (n + 9) = 3n + 3 ⇒ 3/2 x (n + 9) = 3n + 3 ⇒ 1/2 x (n + 9) = n + 1 ⇒ n + 9 = 2n +2 ⇒ n = 7 Required ratio = 3 : 7
According to the Census of India 2011, the Scheduled Castes and the Scheduled Tribes
were _____ and _____ of the country's population, respectively.
_____________ is the scheme for the scavengers and their dependents to form self help groups and get loans with subsidies.
Which of the following is an anthropogenic disaster?
Below are given some parts of a sentence in jumbled order. Arrange the parts in the correct order to form a meaningful sentence.
1) to white, b...
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Which Article of the Constitution of India is related to the Special Address by the President?
Which hormone controls the growth of the body?
Who was the architect of atomic research in India?
As per census 2011, which district has highest population of Schedule Tribe in Rajasthan?
Which among the following book was not written by Krishnadev Raya?
