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Q1.A cube of ice of volume 100cm3 floats in water with 9/10ths of its volme under water. If its portion above water melts at a rate of 10% per minute, what will be its approximate volume above water after 3 minutes?
a.7
cm3 b. 7.29 cm3
c.9.7 cm3 d. 7.3 cm3
Q2.From
a bag containing 1 green, 4 blue and 5 red balls, if a ball is picked up
blindfolded, what is the probability of picking up a blue ball?
a.1/4
b. 2/5
c.1/10 d. 2/3
Q3.A
bird sitting at the top of a pole spots a centipede 36m away from the base of
the pole. If the bird catches the centipede at 16m from the base of the pole
both moving at the same speed, the height of the pole is,
a.18m b.15m
c.12m d.12√2m
Q4.Instead
of dividing 117 among A, B, and C in the ratio of 1/2:1/3:1/4, it was divided
by mistake in the ratio of 2 : 3 : 4. Who gains most and by how much because of
the mistake?
a.B,
3 b.A, 28 c.C, 20 d.C, 25
Q5.After
replacing an old member by a new member it was found that the average age of
five members of a club remained same as it was three years back. The difference
between the ages of two members involved in replacement is,
a.10
years b.2 years c.15 years
d.3 years
Q6.The
students in three classes are in the ratio of 4 : 6 : 9. If 12 students are
increased in each class, the ratio changes to 7 : 9 : 12. Then the total number
of students in the three classes before the increase was,
a.100 b.76
c.95 d.114
Q7.In
40 liters of a mixture of milk and water, the ratio of milk to water is 7 : 1.
To make the ratio of milk to water 3 : 1, the amount of water to be added in
liters is,
a.6 b. 6(2/3)
c. 6(3/4) d. 6(1/2)
Q8.The
product of three consecutive natural numbers will always be divisible by,
a.only
2 b.2 and 3 c.only 3
d.only 4
Q9.By
which largest prime number should 5894 be divided to leave 5 as remainder?
a.13 b.151
c.153 d.17
Q10.A
number consists of two digits such that the digit in the ten's place is less
than the digit in the unit's place by 2. Three times the number added to 6/7th
of the reverse of the number is 108. The sum of the digits of the number is,
a.6 b.8 c.9 d.7
