Arithmetic Practice Questions Set 2 for WBCS

Submitted by Atanu Chaudhuri on Wed, 16/05/2018 - 20:29

$Arithmetic Practice Questions Set 2 for WBCS$

2nd selected WBCS Arithmetic practice question set with answers

Solve 10 carefully selected arithmetic practice questions set 2 for WBCS in 10 minutes. Verify answers. Learn to solve in time from linked solutions.

It should be useful for prelims of other competitive exams also.

The solution set (linked at the end) explains how to solve the questions quickly in mind.

WBCS arithmetic practice questions set 2: time to answer 10 mins

Problem 1

If sum of two numbers is 10 and the sum of their reciprocals is $\displaystyle\frac{5}{12}$, the numbers would be,

6 and 4
8 and 2
9 and 1
7 and 3

Problem 2

A man bought 4 trousers at Rs.750 each, 4 shirts at Rs.450 each and 12 pairs of shoes at Rs.750 each. What is the average expenditure per item?

Rs.900
Rs.1000
Rs.690
Rs.800

Problem 3

A dishonest dealer declares that he sells his goods at cost price, but actually he uses a false weight of 900gms for 1kg weight. His profit percentage is,

$13%$
$11.25%$
$12\displaystyle\frac{1}{9}%$
$11\displaystyle\frac{1}{9}%$

Problem 4

Which of $\sqrt[3]{3}$ and $\sqrt{2}$ is larger?

$\sqrt[3]{3}$
$\sqrt{2}$
The two are equal
None of the above

Problem 5

If P is 50% of Q and Q is 50% of R then, P : Q : R is,

4 : 2 : 1
1 : 2 : 4
2 : 1 : 4
1 : 4 : 2

Problem 6

The number of digits of the square root of 0.00059049 is,

Problem 7

What is the ratio of areas of two squares if the ratio of their diagonals is 5 : 2?

125 : 8
5 : 2
4 : 25
25 : 4

Problem 8

Two trains, each 100m long and moving in opposite directions, cross each other in 8 secs. If one is moving twice as fast as the other, the speed of the faster train is,

60km/hr
70km/hr
50km/hr
40km/hr

Problem 9

In what ratio must water be mixed with milk to make a profit of $16\displaystyle\frac{2}{3}$% on selling the diluted milk at cost price?

6 : 1
4 : 3
2 : 3
1 : 6

Problem 10

A policeman, while running to catch a thief, is 114m behind the thief. The policeman runs 21m and the thief runs 15m every minute. In what time will the policeman catch the thief?

18 minutes
16 minutes
19 minutes
17 minutes

Solutions to these problems with conceptual explanation, and how to solve the problems easily and quickly, are available in companion solution set,

Solution to WBCS Math Question set for Arithmetic Practice 2.