Solve yourself first and comment your
answers. Then cross check with the answer key given below. In case of confusing
questions.. share your steps also. Discuss and study!!
1) If the duty on an article is reduced by
40% of its present rate, by how much percent must the consumption increase in
order that the revenue remains unaltered?
(A) 182/3 %
(B) 194/3 %
(C) 200/3 %
(D) None of these
2) Income of two companies A and B are in
the ratio of 5:8. Had the income of company ‘A’ been more by 25 Lakhs, the
ratio of their income would have been 5:4 respectively. What is the income of
company ‘B’?
(A) 50 Lakhs
(B) 60 Lakhs
(C) 80 Lakhs
(D) 40 Lakhs
3) The height of a room is 5 m and capacity
is 500 cu. m. If the room is square, how much paper of two metre width is
required to cover the walls:
(A) 120 m
(B) 90 m
(C) 100 m
(D) None of these
4) Two vessels A and B contain acid and
water mixed in the ratio 2:3 and 4:3. In what ratio must these mixtures be
mixed to form a new mixture containing half acid and half water?
(A) 7:5
(B) 5:7
(C) 3:5
(D) None of these
5) Three men A B C do a piece of work in 4
hrs, 2 hrs and 1 hr respectively. On a particular day only any two are likely
to come. The difference between the quickest possible completion and slowest
possible completion will be:
(A) 0.66 hrs
(B) 0.80 hrs.
(C) 1.00 hr.
(D) None of these
6) A water tank is hemispherical below and
cylindrical at the top. If the radius is 12 m and capacity is 3312pi m3, the
height of the cylindrical portion in metres is:
(A) 12
(B) 13
(C) 15
(D) None of these
7) 10 sheep and 5 goats were bought for
Rs.6000. If the average price of a sheep is Rs.450, find the average price of
goat:
(A) 370
(B)
355
(C) 325
(D) 300
8) If three metallic spheres of radii 6
cms, 8 cms and 10 cms are melted to from a single sphere, the diameter of the
new sphere will be:
(A) 12 cms
(B) 24 cms
(C) 30 cms
(D) None of these
9) If the length of a rectangle is
increased by 20% and the width is decreased by 20%, the area of the rectangle:
(A) Decreases by 20%
(B) Decreases by 4%
(C) Increases by 40%
(D) Remains unchanged
10) Sixty men can build a wall in 40 days,
but though they begin the work together, 5 men quit every ten days. The time
needed to build the wall is:
(A) 47.5 days
(B) 45 days
(C) 49.5 days
(D) None of these
Answers
1) Ans. (C) 200/3 %
2) Ans. (D) 40 Lakhs
3) Ans. (C) 100 m
4) Ans. (B) 5:7
5) Ans. (A) 0.66 hrs
6) Ans. (C) 15
7) Ans. (D) 300
8) Ans. (B) 24 cms
9) Ans. (B) Decreases by 4%
10) Ans. (A) 47.5 days
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