Wednesday 30 July 2014

Quantitative Aptitude-Practice Set-3

1.       Five farmers have 7, 9, 11, 13 & 14 apple trees, respectively in their orchards. Last year, each of them discovered that every tree in their own orchard bore exactly the same number of apples. Further, if the third farmer gives one apple to the first, and the fifth gives three to each of the second and the fourth, they would all have exactly the same number of apples. What were the yields per tree in the orchards of the third and fourth farmers?

Answer:
11 & 9 apples per tree.
                Explanation:
                Let a, b, c, d & e be the total number of apples bored per year in A, B, C, D & E ‘s orchard. Given that       a + 1 = b + 3 = c – 1 = d + 3 = e – 6 
But the question is to find the number of apples bored per tree in C and D ‘s orchard. If is enough to consider c – 1 = d + 3.
                Since the number of trees in C’s orchard is 11 and that of D’s orchard is 13. Let x and y be the number of apples bored per tree in C & d ‘s orchard respectively.
                Therefore 11 x – 1 = 13 y + 3
By trial and error method, we get the value for x and y as 11 and 9

2.      Five boys were climbing a hill. J was following H. R was just ahead of G. K was between G & H. They were climbing up in a column. Who was the second?

Answer:
G.
                Explanation:
                The order in which they are climbing is R – G – K – H – J    

3-6     John is undecided which of the four novels to buy. He is considering a spy
thriller, a Murder mystery, a Gothic romance and a science fiction novel. The books are written by Rothko, Gorky, Burchfield and Hopper, not necessary in that order, and published by Heron, Piegon, Blueja and sparrow, not necessary in that order.
(1) The book by Rothko is published by Sparrow.
(2) The Spy thriller is published by Heron.
(3) The science fiction novel is by Burchfield and is not published by Blueja.
(4)The Gothic romance is by Hopper.

3.      Pigeon publishes ____________.

4.      The novel by Gorky ________________.

5.     John ­purchases books by the authors whose names come first and third in alphabetical order. He does not buy the books ­­______.

6.     On the basis of the first paragraph and statement (2), (3) and (4) only, it is possible to deduce that
1.       Rothko wrote the murder mystery or the spy thriller
2.       Sparrow published the murder mystery or the spy thriller
3.       The book by Burchfield is published by Sparrow.

3 – 6
Answer:
                               
               

Since Blueja doesn’t publish the novel by Burchfield and Heron publishes the novel spy thriller, Piegon publishes the novel by Burchfield.
Since Hopper writes Gothic romance and Heron publishes the novel spy thriller, Blueja publishes the novel by Hopper.

Since Heron publishes the novel spy thriller and Heron publishes the novel by Gorky, Gorky writes Spy thriller and Rathko writes Murder mystery. 

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