Mathematics Question For RRB, Railway Group D, Rajasthan SI 29-07-2018

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Question(1) The volume of any circle is 88/21 * (14) ^ 3 cm ^ 3, is the curve of this sphere having a surface area?

 किसी गोले का आयतन 88/21*(14)^3 सेमी^3 है इस गोले का वक्र पृष्ठीय क्षेत्रफल है ?

(A)2564 सेमी^3

(B) 2647 सेमी^3

(C) 2464 सेमी^3

(D) 2643 सेमी^3

Question(2) The largest shell has been cut from the 7 cm arm cube. Volume of the sphere?

7 सेमी भुजा वाले घन से सबसे बड़ा गोला काटा गया है | गोले का आयतन होगा ? 

(A) 179.32

(B) 145.7

(C) 180.65

(D) 179.67

Question(3) The outer diameter of a hollow ball of metal is 6 cm And its thickness is 1/2 cm Is there. Is this the volume of the ball?

 धातु की एक खोखली गेंद का बाहरी व्यास 6 सेमी. है तथा उसकी मोटाई 1/2 सेमी. है | इस गेंद का आयतन है ?

(A) 123/7 सेमी^3

(B) 143 /3 सेमी^3

(C) 147/5 सेमी^3

(D) 154/6 सेमी^3

Question(4) The volume of two goals is in the ratio of 8:27. What will be the ratio of their entire surface?

 दो गोलों का आयतन 8:27 के अनुपात में है | उनकी पूरी सतह का अनुपात क्या होगा ? 

(A) 4:9

(B)4:8

(C) 5:6

(D)8:9

Question(5) The base of the two cylinders is in proportion to the radius 2: 3 and the ratio of their height is 5: 3 ratio of their volumes?

 दो बेलनों की आधार त्रिज्याऍं 2:3 के अनुपात में है और उनकी ऊँचाईयों का अनुपात 5:3 है उनके आयतनों का अनुपात है ?

(A)45:89

(B) 55:65

(C) 20:27

(D) 45:98

All Solutions (1-5):

Que(1).Ans-(C)

Que(2).Ans-(D)

Que(3).Ans-(B)

Que(4).Ans-(A)

Que(5).Ans-(C)


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