Mathematics Question For RRB, Railway Group D, Rajasthan SI 22-07-2018

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Question(1) The area of a geometric plane is 150 cm ^ 2. One of its diagonals length 10 cm Is there. Will the length of the second diagonal be?

किसी समचतुर्भुज का क्षेत्रफल 150 सेमी.^2 है | उसके एक विकर्ण की लम्बाई 10 सेमी. है | दूसरे विकर्ण की लम्बाई होगी ?

(A)33 सेमी

(B) 30 सेमी

(C) 21 सेमी

(D) 25 सेमी

Question(2) The sides of a parallelogram are 15 cm and 7 cm And the length of one of its diagonals is 20 cm Is there. Accordingly according to his area?

 एक समांतर चतुर्भुज की भुजाऍं 15 सेमी तथा 7 सेमी. तथा उसके एक विकर्ण की लंबाई 20 सेमी. है | तदनुसार उसका क्षेत्रफल कितना होगा?

(A) 73 सेमी^2

(B)85 सेमी^2

(C) 46 सेमी^2

(D) 84 सेमी^2

Question(3) The length of one side of an equilateral triangle is 8 cm Is there. Will there be an area of the area between the circumflex and the endosphere of this triangle?

 किसी समबाहु त्रिभुज की एक भुजा की लम्बाई 8 सेमी. है | इस त्रिभुज के परिवृत्त तथा अन्तवृत्त के बीच के क्षेत्र का क्षेत्रफल होगा ?

(A)6 सेमी

(B) 5 सेमी

(C) 4 सेमी

(D)2 सेमी

Question(4) What will be the area of the largest circle that can be created within a square of 28 cm?

28 सेमी की भुजा वाले वर्ग के भीतर बनाए जा सकने वाले सबसे बड़े वृत्त का क्षेत्रफल क्या होगा ?

(A) 616 वर्ग सेमी

(B) 536 वर्ग सेमी

(C) 629 वर्ग सेमी

(D)526 वर्ग सेमी

Question(5) Each side of any rectangular area has been reduced by 40 percent. What is the percentage of area deficiency?

 किसी आयताकार क्षेत्र की प्रत्येक भुजा 40 प्रतिशत कम कर दी गयी है | क्षेत्र के क्षेत्रफल में कितने प्रतिशत की कमी हो गयी है ?

(A) 34%

(B) 65%

(C) 55%

(D) 64%

All Solutions (1-5):

Que(1).Ans-(B)

Que(2).Ans-(D)

Que(3).Ans-(C)

Que(4).Ans-(A)

Que(5).Ans-(D)

 

 

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