Mathematics Question For RRB, Railway Group D, Rajasthan SI 19-07-2018

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Question(1) The ratio of areas in two triangles is 4: 3 and the ratio of the heights are 3: 4. Find the ratio of their bases?

दो त्रिभुजों में क्षेत्रफलों का अनुपात 4:3 है और ऊँचाईयों का अनुपात 3:4 है | इनके आधारों का अनुपात ज्ञात कीजिए?

(A) 12:4

(B) 34:3

(C) 21:5

(D) 44:2

Question(2) The sides of a triangular area are 30 meters 72 meters and 78 meters. Will the length of the headline of the arm measuring 72 meters?

किसी त्रिभुजाकार क्षेत्र की भुजाओं की माप 30 मीटर 72 मीटर तथा 78 मीटर है| 72 मीटर माप वाली भुजा के शीर्षलम्ब की लम्बाई होगी ?

(A) 30 मीटर

(B)13 मीटर

(C)21 मीटर

(D)23 मीटर

Question(3) The ratio of the external and internal dimensions of a circular path is 23:22. If the width of the road is 5 meters, then the diameter of the inner circle will be?

किसी वृत्ताकार मार्ग की बाह्य तथा आन्तरिक परिमापों का अनुपात 23:22 है | यदि मार्ग की चौड़ाई 5 मीटर है , तो आन्तरिक वृत्त का व्यास होगा ?

(A) 223 मीटर

(B)235 मीटर

(C)326 मीटर

(D) 220 मीटर

Question(4) Radius of balls A and B are respectively 40 cm And 10 cm Is the proportion of the dorsal area of both of them?

गोले A और B की त्रिज्याऍं क्रमशः 40 सेमी. और 10 सेमी. है दोनो के पृष्ठीय क्षेत्रफल का अनुपात है ?

(A) 13:3

(B) 16:1

(C) 16:6

(D) 12:5

Question(5) The area of a circular orchard is 2464 meters. If you cross the garden on any of its diameters, how much distance do you have to fix?

एक वृत्ताकार बाग का क्षेत्रफल 2464 मीटर है यदि आप बाग को उसके किसी व्यास पर चलकर पार करे , तो आपको कितनी दूरी तय करनी पड़ेगी ?

(A) 56 मीटर

(B) 25 मीटर

(C) 46 मीटर

(D) 55 मीटर

All Solutions (1-5):

Que(1).Ans-(C)

Que(2).Ans-(A)

Que(3).Ans-(D)

Que(4).Ans-(B)

Que(5).Ans-(C)

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