Mathematics Question For RRB, Railway Group D, Rajasthan SI 13-07-2018

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Question(1) The volume of the largest cylinder be formed by turning the long arm of a rectangular sheet of 22 cm * 15 cm size?

22 सेमी * 15 सेमी साइज की आयताकार कागज की शीट की लम्बी भुजा को मोड़कर बनने वाले सबसे बड़े बेलन का आयतन होगा ?

(A) 577.50 सेमी^3

(B)352.54 सेमी^3

(C) 234.34 सेमी^3

(D)138.66 सेमी^3

Question(2) If an equal hexagon and an equilateral triangle whose magnitude are the same, then what is the ratio of their areas?

एक सम षट्भुज और एक समबाहु त्रिभुज, जिसके परिमाप एक समान हों तो उनके क्षेत्रफलों का अनुपात कितना होगा?

(A) 4:3

(B)3:6

(C) 3:2

(D) 6:2

Question(3) If a wire is folded into a square, the area of 121 cm ^ 2 is covered. If the same wire is folded in the shape of a circle, then will the area of the circle be?

 किसी तार को एक वर्ग के आकार में मोड़ने पर 121 सेमी^2 क्षेत्रफल वाला क्षेत्र घेरा जाता है | यदि उसी तार को एक वृत्त के आकार में मोड़ा जाए तो वृत्त का क्षेत्रफल होगा ?

(A) 124 सेमी^2

(B) 154 सेमी^2

(C)142 सेमी^2

(D) 127 सेमी^2

Question(4) What is the area of a semi-circle with a diameter of 14 meters?

14 मीटर के व्यास वाले अर्ध्द-वृत्त का क्षेत्रफल कितना होगा ?

(A)34 वर्ग मीटर

(B) 42 वर्ग मीटर

(C) 44 वर्ग मीटर

(D) 77 वर्ग मीटर

Question(5) If any rectangular area has a circumference of 200m and its width is 40m then its area will be?

किसी आयताकार क्षेत्र का परिमाप 200 मी है और इसकी चौड़ाई 40 मी है तो उसका क्षेत्रफल होगा ?

(A) 2400 मी^2

(B)1237 सेमी^2

(C)2228 सेमी^2

(D)1349 सेमी^2

All Solutions (1-5):

Que(1).Ans-(A)

Que(2).Ans-(C)

Que(3).Ans-(B)

Que(4).Ans-(D)

Que(5).Ans-(B)

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