Railway Aptitude Questions and Answers for Exams

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Railway Aptitude Questions and Answers for Exams
Q :  

PQR is an equilateral triangle whose side is 10 cm . What is the value (in cm) of the inradius of triangle PQR ?

(A) 10

(B) $$ {5\over{\sqrt{3}}}$$

(C) $$ {10\over{\sqrt{3}}}$$

(D) $$ {10{\sqrt{3}}}$$


Correct Answer : B

Q :  

If 2x + 3y - 5z = 18 , 3x + 2y + z = 29 and x + y + 3z = 17 , then what is the value of xy + yz + zx ? 

(A) 32

(B) 46

(C) 64

(D) 52


Correct Answer : D

Q :  

In the given figure ABC is an equilateral triangle. Two circles of radius 4 cm and 12 cm are inscribed in the triangle. What is the side (in cm) of an equilateral triangle?

(A) $$ {10{\sqrt{3}}}$$

(B) $$ {14{\sqrt{3}}}$$

(C) 24

(D) $$ {24{\sqrt{3}}}$$


Correct Answer : D

Q :  

ABCD is a trapezium in which AB is parallel to CD and AB = 4 ( CD ) . The diagonals of the trapezium intersects at O. what is the ratio of area of triangle DCO to the area of the triangle ABO ?

(A) 1 : 4

(B) 1 : 2

(C) 1 : 8

(D) 1:16


Correct Answer : D

Q :  

Two casks of 48 liter and 42 liter are filled with mixtures of milk and water, the proportions in the two casks being respectively 13 : 7 and 18 : 17. If the contents of two casks be mixed and 20 liter of water be added to the whole , what will be the proportion of milk and water in the resulting mixture ?

(A) 5:12

(B) 12:13

(C) 7:13

(D) 8:15


Correct Answer : B

Q :  

In a test consisting of 150 questions carrying 1 mark each, Saurabh answered 80 % of the first 75 question correctly. What percent of the other 75 question does he need to answer correctly to score 60 % overall? 

(A) 20

(B) 40

(C) 50

(D) 60


Correct Answer : B

Q :  

An electrician has to repair an electric fault on a pole of height 4 m. He needs to reach a point 1.3 m below the top of the pole to un dertake the repair work the length of ladder that he should use, which when inclined at an angle of 60° to the horizontal would enable him to reach the required positions is :

(A) $$ {9\sqrt{3}\over 10}{\ meter}$$

(B) $$ {3\sqrt{3}\over 10}{\ meter}$$

(C) $$ {3\sqrt{3}\over 5}{\ meter}$$

(D) $$ {9\sqrt{3}\over 5}{\ meter}$$


Correct Answer : D

Q :  

If a , b , c are in AP and x , y and z are in GP , then $${x^{b-c}.{y^{c-a}.z^{a-b}=?}}$$

(A) 0

(B) a + b + c

(C) 1

(D) xyz


Correct Answer : C

Q :  

A money - lender, lends a part of his money at 10 % per annum and the rest at 15 % per annum. His annual income is 1,900. However, if he had interchanged rate of interest on the two sums, he would have earn 200 more. The amount lent will fatch what amount at 15 % ? 

(A) ₹ 6,000

(B) ₹ 4,000

(C) ₹ 10,000

(D) ₹ 4,400


Correct Answer : A

Q :  

A shuttlecock used of playing badminton has the shape of a frustum of a cone mounted on a semi sphere. The external diameters of the frustum are 5 cm and 2 cm, the height of the entire shuttlecock is 7 cm. The external surface is of the shuttlecock is:

(A) 67.98 sq.cm

(B) 74.26 sq.cm

(C) 70 sq.cm

(D) 72 sq.cm


Correct Answer : B

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    Gajanand

    B-Tech Electronic and Communication Engineering select the SSC CGL Tier-1 and Tier-2 in 2016 and Rajasthan state Govt. Exams Expert in Mathematics , Reasoning Gk and English.

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