Study Book for IBPS CWE Clerk Exam Numerical Ability
Numerical Ability Questions with Answers:
1)723.870 ‐ ? =
251.36 +450.478
a. 22.032
b.23.032
c.22.132
d.none of these
2)35% of 80 = 56?
a.2
b.2/3
c.1/2
d.0.57
3)(11)2 ‐ (1.1)2
‐ (0.11)2 = ?
a. 119.7779 b. 121
c.119.79 d.119.8021 e. none of these
4)60+5*12 /(180 /
3 ) = ?
a.60 b. 120 c.13
d.61 e. none of these
5)49% of 490 +
490% of 49 = ?
a.2641.1 b.240.1
c.2401 d.480.2 e. none of these
6)8.36 *4.35
+8.0004 = ?
a.44.37 b.44.3664
c.43.5304 d.42.3664 e.none of these
7)19.24/4 = ?
√169
*74
a.0.005 b.0.002
c.0.0002 d.0.00002
8)3/4 ‐ 1/2 ‐
1/6 ‐ 1/3 is equal to
a.1 b.1/8 c.2
d.1/12 e.(‐1/4)
9)Which is the
smallest fraction?5/6, 3/8, 2/3 ,3/4
a.5/6 b.3/8 c.3/4
d.2/3
10)0.55*0.55+2*0.55*0.45+0.45*0.45/
0.55+0.45
a 2
b 0.25
c.0.2
d. 1{hint a2 + 2ab + b2 = (a+b)(a+b)}
TIME & WORK Based Questions
Q1) 'A' can do a
piece of work in 10 days and B can do the same work in 15 days. In
how many days the work will be done
them together?
Ans ‐ A & B
whole work can do = 6 days
Q2)If 'm' men
working 'm' hours a day for for 'm' days can produce 'm' units of
work,then the units of
work produced by
'n' men working 'n' hrs a day for 'n' days is
Ans ‐ n3 /m2
Q3)3 men can do as
much work on 5 women or 10 children. If 40 children can do a piece of
work in 7
days , then 6 men
, 5 women and 5 children can do the same work in:
Ans ‐ a)7 days
b)8 days c)9days d)12days e)none
Q4)A tap can fill
a tank in 9 min,another can fill it in 18 min and a third one can
empty at in 12 min.
How long does it
take to fill the tank if all are open.
a)15mts b)18 mts
c)24mts d)36mts e)none {ans 12mts}
Q5)A and b can do
a piece of work in 12 days.B and c can do it in 15 days .C and A can
do it in 20
days.They all
worked for 6 days and then A and C left.In how many days B can finish
the balance of
work.
a)8days b)9days
c)10days d)12days
Q6)A contractor
undertakes to do a piece of work in 40 days.He engages 100 men and
after 35 days ,an additional 100
men,and completes the work.How many days behind schedule would he has
been ,if he not engaged the
additional men?
a)5 b) 8 c) 12
d)18 e)data is insufficient
Q7)In a day A does
twice as much work as B and is therefore able to finish a piece of
work in 60 days
less than B.In
what would A and b working together can finish the work?
a)20days b)25days
c)30days d)40days e)60days
Q8)20men can do a
work in 18 days. How many men are required to finish 3/4 of the work
in 15 days?
a)10 b)12 c) 18
d)20 e)none
Q9)Ramesh can do a
work in 20 days.He worked alone for 10 days.Remaining work was
completed with the help of Dinesh
in 2 days will the work be completed by both together?
Ans ‐ 4days
Q10)A and B
together can do a work in 24 days. B alone does its 1/3 part in 12
days . How long will A alone take to do
the remaining work?
a)48 b)36 c)24
d)72 e) none of these
SPEED ,TIME AND
DISTANCE Based Questions
? 1 km = 5/18m/sec
? when a train
crosses a man/pole,distance = length of train
? when a train
crrosses a bridge/platform ,distance = length of train + length of
platform
? when there are
two moving bodies ,speed is to be replaced by relative speed,RS = x
+y
(opposite
direction)
RS = x ‐y (same
direction )
Q1) A person
walking at 2.5km/hr ,reaches his office 6 min late . If he walks
3.5km/hr ,he reaches there
6 min earlier.How
far is the office from his house?
Ans ‐ 1 3
4
Q2)A man can swim
40km downstream in 4 hrs and the same distance upstream in 20
hrs.Find the
speed of the
stream?
Ans ‐ x+y = 40/4
= 10
x ‐y = 40/20 = 2
2y = 8 ,speed of
stream = 4km/hr
Q3)A passenger
train 250m in length crosses a platform 350m long in 45 sec .The
speed of the train will be.
Ans ‐ 48 km/hr
Q4)A train of
length 290m, is going at a speed of 30 km/hr and another train of
length 210m is moving
at a speed of
20km/hr in the opposite direction .The time required by them to cross
each other is
a)20sec b)24sec
c)36sec d)54sec e)none
Q5)I can row 100km
downstream in 5 hrs and the same distance upstream in 10 hrs.the
speed of the
stream is
a)15km/hr
b)10km/hr c)5km/hr d)5/2km/hr e) none
Q6)A cyclist goes
at a speed of 12km/hr .He can cover 100m in
a)10sec b)20sec
c)30sec d) 1min e)none
Q7)The speed of a
boat in still water is 3km/hr and the speed of the stream is 2km/hr.
It can cover
10km downstream on
a)10hrs b)5hrs
c)3hrs d)2hrs e)none
Q8)A train moving
at a speed of 50km/hr crosses a length 100m in 18 sec. Its length is
:
a)100m b)120m
c)150m d)180m e)none
Q9)A 150m long
train crosses a man walking at the speed of 6km/hr in the opposite
direction in 6
sec.The speed of
the train in km/hr is
a)66 b)84 c) 96
d)106
Q10)A man can row
9 1/3km/hr in still water and he finds that it takes him thrice as
much time to row
up them so as to
row down the same distance in river.The speed of the current is
a)10/3km/hr
b)28/9km/hr c)5/4km/hr d)14/3km/hr
MISCELLEANOUS
PROBLEMS FOR IBPS CWE NUMRICAL ABILITY
Q1) The price of
one dozen pens is Rs540. What will be the price of 319 such pens ?
Ans ‐ price of
12 pens = Rs540
price of 1 pen =
540/12
price of 319 pens
= 540*319/12 = Rs 14355
Q2)A tank can be
filled by 20 buckets each of capacity 13.5 lit. If the capacity of
each bucket be 9lit ,how many bucket
will fill the same tank?
Ans ‐ 30 buckets
Q3)Five dozen toys
are packed in a box and 98 boxes are kept in tempo.How many tempoes
can lift 29400 toys in one
round.
a)4 b) 5 c)7 d)6
e) none of these
Q4)The ratio
between the present ages of Naveen and Prabhat is 4:5. If after 5
years the ratio of the present age of
Prabhat and tha age of Prabhat at that time is 7:8 what will be the
ratio between the present age of
naveen and Naveen's after 4 years?
Ans ‐ 7:8
Q5)The age of
sushil 6 years ago was 3 times the age of Snehal .6 years hence the
age of Sushil would be 5/3 times that
of Snehal.What is the present age of Snehal?
a)14yrs b)22yrs
c)18yrs d)21yrs e)none of these
Q6)1/4th part of
money of Nikhil is equal to 1/6th part of the money of Yogesh. If
total sum of both is equal to Rs 600
then , what is the difference of their money
Ans ‐ Rs120
Q7)In an office
there are 114 tables and 129 chairs . If 1/6 of the tables and 1/3 of
the chairs are
broken, how many
people work in the office when each person requires one table and one
chair?
Ans ‐ required
no. of persons 86
Q8)1/5th of
Gopal's expenditure is equal to 1/2 of his savings.if his monthly
income is 5600 how much amount does he
save per month ?
a)Rs1350 b)1500
c)1680 d)1400 e)none of these {savings = 1600}
Numerical Ability Formulae:
Let 3 consecutive
odd no. be y‐2 , y , y+2 respectively
total of these odd
no. = 3y
Let 3 consecutive
even no. be x‐2,x, x+2 respectively
total of these =
3x
Q9)The difference
between the middle number of three consecutive odd numbers and the
middle of three consecutive
even no is 7. What will the difference between the total of these odd
no and the total of those
three even numbers?
Ans ‐ 21
Q10)The difference
of two numbers of two digit each is 24 while the sum of these two no.
is 102.What is the larger no?
Ans ‐ 63
Q11)When 30% of
one no. is added to another no the second no. increases by 1/5th.
what is the ratio of the first no to
the second no.
a)5:6 b)3:2 c)2:3
d)1:2 e)none of these
Q12)The difference
between a two digit no and the no. obtained by interchanging the
digits is 45.What is the difference
between the digits of that no.?
a)4 b)5 c)6 d)7
e)none of these
Q13)If the
difference between the digits of a two digit no is 3 and the product
of the digits is 18, What is the sum of the
digits of that no.?
a)8 b)9 c)7 d)6
e)none of these
MISCELLANOUS
PROBLEMS
Q1)Find out the
wrong number in the following given sequences?
? 51 64 24 75
14.75 78.75
a)51 b)64 c)24
d)75 e)none of these
Q2)The diameter of
the driving wheel of the bus is 140cm.How many revolutions per
minute must the wheel make in order to keep a speed of
132km/hr?
b)300 c)400 d)500
e)none of these
Q3)Three persons
A,B, C whose salaries together amount to Rs14400, spend 80,85,75
percent of their salaries
respectively.If their savings are in the ratio 8:9:20 then find the
ratio of their salaries.
a)1:2:3 b)3:2:1
c)2:3:4 d)4:3:2 e)data inadequate
Q4)How many words
can be formed with the letters of the word PATLIPUTRA without
changing the relative position
of vowels and consonants?
a)2160 b)3250
c)3230 d)3660 e)none of these
Q5)If the salary
of a person is fprst decreased by 25% and then increased by 15%, what
is % loss or gain
a)13.75%loss
b)12.75%gain c)10%loss d)10%gain e)none of these
Q6) 63,45,72
litres are to be drawn from three cans respectively . What is the
exact capacity of
measure which will
do it most quickly?
a)9lit b)7lit
c)8lit d)11lit
Q7)Three integers
a, b ,c are such that b/c = 3.The fraction b/a is in its lowest form.
Which of the
following is the
possible value of a?
a)180 b)234 c)104
d)414
Q8)what is the
least value of x, such that 85324x6 is divisible by 11?
a)2 b)3 c)1 d)6
Q9)If 3a+5b/3a‐5b
=5 ,find a:b
a)2:5 b)5:2 c)3:5
d)5:3
Q10)A pressure
cooker is sold for Rs1200/‐ .Sales tax amounts for 1/5th of this
and profit 1/3rd of the
remainder. Find
the CP.
a)Rs740 b)Rs620
c)Rs640 d)Rs560
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