# Test for Clerk :: Practice Question For Arithmetic

1.
The sum of the two digits of a two-digit number is 12 and the difference
between the two-digits of the two-digit number is 6. What is the two-digit
number?

A)
39

B)
84

C)
93

D)
Cannot be determined

E)
None of these

2.
If an amount of Rs. 74, 336 is equally divided amongst 150 people, how much
approximate amount would each person get?

A)
Rs. 522

B)
Rs. 485

C)
Rs. 496

D)
Rs. 488

E)
Rs. 5 10

3.
Mr. sakathe invests 6% of his monthly salary i.e. Rs 2,100 on insurance
policies. Also he invests 8% of his monthly salary on family mediclaim policies
and another 9% of his salary on NSCs. What is the total annual amount invested
by Mr. sakathe?

A)
Rs 11,400

B)
Rs 96,600

C)
Rs 8,050

D)
Rs 9,500

E)
None of these

4. A trader sells 145 metre of cloth for Rs
12,325 at the proﬁt of Rs 10 per metre’ of cloth. What is the cost price of 1
metre of cloth?

A)
Rs. 65

B)
Rs. 75

C)
Rs. 95

D)
Rs 85

E)
None of these

5.
There are 7 dozen candles kept in a box. If there are 14 such boxes, how many
candles are there in all the boxes together?

A)
1176

B)
98

C)
1216

D)
168

E)
None of these

6.
The average height of 18 girls is 117 13/18 cms. The average height of 21 boys
is 104 13/21 cms. What is the overall average height of all the students
together in the class?

A)
110 2/3 cm

B)
111 2/3 cm

C)
112 1/3 cm

D)
110 1/3 cm

E)
109 4/3 cm

7.
Two candles of the same height are lighted at the same time. The first is
consumed in 6 hours and the second in 4 hours. Assuming that each candle burns
at a constant rate, in how many hours after being lighted, was the first candle
was twice the height of the second?

A)
3.5 hrs

B)
2 hrs

C)
4 hrs

D)
3 hrs

E)
2.5 hrs

8.
Three friends Raki, Ravi and Sunita jog around a circular park and complete
round in 21, 18 and 24 minutes respectively. In how many hrs will all the three
meet again at starting point?

A)
8 hrs

B)
8.4 hrs

C)
6.5 hrs

D)
7.5 hrs

E)
9 hrs

9.
The respective ratio between the present ages of murali and malli is 18 : 17.
Nine years ago the respective ratio between their ages was 15 : 14. How old is lilly if her present age is 9 years less than malli's present age?

A)
36 years

B)
40 years

C)
58 years

D)
48 years

E)
42 years

10.
P and Q enter into a partnership investing Rs. 24000 and Rs. 32000
respectively. After 8 months, R also joins the business with capital of Rs.
30000. The share of R in a profit of Rs. 91200 after 2 years will be:

A)
Rs. 20000

B)
Rs. 28000

C)
Rs. 36000

D)
Rs. 24000

E)
Rs. 22000

**Answers with explanations :**

1.
(E) Let the number be 10x + y

x
+ y = 12 and x – y = 6

**=>**x = 9 and y = 3
or,
x =3 and y = 9

Hence
the no. may be 93 or 39.

2.(C)
The amount each would get = 74336/50

=
Rs. 496 (App.)

3.
(B) Total amount invested = 2100 * 23/6 = Rs. 8050

Annual
investment =Rs. 8050*12 = 96,600

4.
(B) Let the cost of 1 metre of cloth be Rs. x.

(x
+ 10) * 145 = 12325

**=>**145x + 1450 = 12325
x
= (12325-1450)/145=Rs.75

5.
(A) Total no. of candles = 14 * 7 * 12 = 1176

6.
1

Average
height of the class

=
{18 (117 * 18 + 13)/18 + 21 (104 * 21 + 13)/21}/(18 + 21)

=
(2119 + 2197)/ 39 = 332/3 = 110 2/3cm

7.
D

Required
answer = {6 * 4(2-1)}/{2*6-4} = 24/(12 - 4) = 24/8 = 3 hrs

8.B

Required
time = LCM of 21, 18, 24 min = 504 mins = 8.4 hrs

9.
E

Let
the present age of murali and malli be 18x and 17x respectively

(18x
- 9)/(17x - 9) = 15/14

**=>**252x – 126 = 255x – 135
3x
= 9

**=>**x = 3
lilly ’s
present age = 17× 3 – 9 = 42 years

10.
D

Ratio
of profit P, Q and R

=
24000 × 24 : 32000 × 24 : 30000 × 16 = 6 : 8 : 5

Share
of R = 5/19 × 91200 = Rs. 24000

Test for Clerk :: Practice Question For Arithmetic
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