Page 26 - GMAT 2017b_Neatb

Quantitative Reasoning Test 2

52. If I can complete a work in 16 days, then in how many 59. If 10 years are subtracted from the present age of
3 Adamu and the remainder divided by 14, then you
days can he complete th of the work?
4 would get the present age of his grandson David. If
(A) 16 days David is 9 years younger to Daniel whose age is 14,
(B) 20 days then what is the present age of Adamu?
( C) 12 days (A) 80 years
(D) None of these (B) 70 years
( C) 60 years
53. Working 7 hours daily 24 men can complete a piece of (D) None of these
work in 27 days. In how many days would 14 men
complete the same piece of work working 9 hours 60. Two groups of student, whose average ages are 20
daily? years and 30 years, combine to form a third group
(A) 36 days whose average age is 23 years. What is the ratio of the
(B) 30 days number of students in the first group to the number of
( C) 32 days students in the second group?
(D) None of these (A) 5 : 2
(B) 2 : 5
54. 10 men can cut 15 trees in 2 hours. If 2 men leave the ( C) 7 : 3
job, how many trees will they cut in 3 hours? (D) None of these
(A) 20 trees
(B) 18 trees 61. A year ago, a father was four times his son’s age. In six
( C) 24 trees years, his age will be 9 more than twice his son’s age.
(D) None of these What is the present age of the son?
(A) 10 years
55. 45 men complete a piece of work in 30 days working 12 (B) 9 years
hours a day. In how many days will 60 men complete the ( C) 20 years
work if working 10 hours a day? (D) None of these
(A) 27 days
(B) 30 days 62. In 1932, I was as old as the number formed by the last
( C) 24 days two digit of my birth year. When I mentioned this
(D) None of these interesting coincidence to my grandfather, he
surprised me by saying that the same applied to him
56. A’s age is 1/6th of B’s age. B’s age will be twice of C’s also. The year of birth of my grandfather is
age after 10 years. If C’s eight birthday was celebrated (A)1866
two years ago, then the present age of A must be (B) 1886
(A) 5 years ( C) 1906
(B) 10 years (D) 1916
( C) 15 years
(D) 20 years 63. The average age of three boys is 16 years. If their ages
are in the ratio 4 : 5 : 7, then the age of the youngest
57. Ade was twice as old as Ajayi 10 years back. How old is boy is
Ajayi today if Ade will be 40 years old 10 years later? (A) 8 years
(A) 20 years (B) 9 years
(B) 10 years ( C) 12 years
( C) 30 years (D) 16 years
(D) None of these
64. “I am eight times as old as you were when I was as old
58. A demographic survey of 100 families in which two as your are”, said a man to his son. Find out their
parents were present revealed that the average age A, of present ages if the sum of their ages is 75 years
the oldest child, is 20 years less than ½ the sum of the (A) 47 years and 28 years
ages of the two parents. If F represents the age of one (B) 42 years and 33 years
parent and M, the age of the other parent, then which of ( C) 48 years and 27 years
the following is equivalent to A? (D) 46 years and 26 years
F + M - 20
(A)
2 65. My brother was 3 years of age when my sister was
F + M born, while my mother was 26 years of age when I was
(B) + 20
2 born.
F + M (D) F + M - 10
( C) - 20
2
16