If 2x-y=4 then 6x-3y=? (a)15 (b)12 (c)18 (d)10 Ans:.
If x=y=2z and xyz=256 then what is the value of x? (a)12
(b)8 (c)16 (d)6 Ans:. (b)
(1/10) 18 - (1/10) 20 = ?
(a) 99/10 20 (b) 99/10 (c) 0.9 (d) none of these Ans:. (a)
Pipe A can fill in 20 minutes and Pipe B in 30 mins and Pipe C can empty
the same in 40 mins.If all of them work together, find the time taken to
fill the tank
(a) 17 1/7 mins (b) 20 mins (c) 8 mins (d) none of these Ans:. (a)
Thirty men take 20 days to complete a job working 9 hours a day.How many
hour a day should 40 men work to complete the job?
(a) 8 hrs (b) 7 1/2 hrs (c) 7 hrs (d) 9 hrs Ans:. (b)
. Find the smallest number in a GP whose sum is 38 and product 1728
(a) 12 (b) 20 (c) 8 (d) none of these Ans:. (c)
A boat travels 20 kms upstream in 6 hrs and 18 kms downstream in 4
hrs.Find the speed of the boat in still water and the speed of the water
(a) 1/2 kmph (b) 7/12 kmph (c) 5 kmph (d) none of these Ans:. (b)
A goat is tied to one corner of a square plot of side 12m by a rope 7m
long.Find the area it can graze?
(a) 38.5 sq.m (b) 155 sq.m (c) 144 sq.m (d) 19.25 sq.m Ans:. (a)
Mr. Shah decided to walk down the escalator of a tube station. He found
that if he walks down 26 steps, he requires 30 seconds to reach the bottom.
However, if he steps down 34 stairs he would only require 18 seconds to get
to the bottom. If the time is measured from the moment the top step begins
to descend to the time he steps off the last step at the bottom, find out
the height of the stair way in steps?
Ans:. 46 steps.
The average age of 10 members of a committee is the same
as it was 4 years ago, because an old member has been replaced by a young
member. Find how much younger is the new member ? Ans:. 40
Three containers A, B and C have volumes a, b, and c
respectively; and container A is full of water while the other two are
empty. If from container A water is poured into container B which becomes
1/3 full, and into container C which becomes 1/2 full, how much water is
left in container A?
ABCE is an isosceles trapezoid and ACDE is a rectangle.
AB = 10 and EC = 20. What is the length of AE? Ans:. AE = 10
In the given figure, PA and PB are tangents to the circle
at A and B respectively and the chord BC is parallel to tangent PA. If AC =
6 cm, and length of the tangent AP is 9 cm, then what is the length of the
chord BC? Ans:. BC = 4 cm.
Three cards are drawn at random from an ordinary pack of
cards. Find the probability that they will consist of a king, a queen and an
ace. Ans:. 64/2210
A number of cats got together and decided to kill between
them 999919 mice. Every cat killed an equal number of mice. Each cat killed
more mice than there were cats. How many cats do you think there were ? Ans:.
If Log2 x - 5 Log x + 6 = 0, then what would the value / values of x be?
Ans:. x = e2 or e3.
In june a baseball team that played 60 games had won 30%
of its game played. After a phenomenal winning streak this team raised its
average to 50% .How many games must the team have won in a row to attain
A. 12 B. 20 C. 24 D. 30 ( Ans:. C)
.Can you tender a one rupee note in such a manner that there shall be
total 50 coins but none of them would be 2 paise coins.? Ans:. 45
one paisa coins, 2 five paise coins, 2 ten paise coins, and 1 twenty-five
A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft. and
slips back 2ft. How much time would it take the monkey to reach the top?
What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 Ans:.