# Mathematics Question For Railway Group D,RPF, Rajasthan SI 01-10-2018

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Question(1) 250 men can complete one work within 20 days by working 5 hours a day. The minimum number of people required to complete the same work within 10 days of working 8 hours per day?

250 आदमी प्रतिदिन 5 घंटे काम करके एक काम को 20 दिन में पूरा कर सकते है | उसी काम को प्रतिदिन 8 घंटे काम करके 10 दिन के भीतर पूरा करने के लिए अपेक्षित आदमियों की न्यूतम संख्या है?

(A) 464

(B) 245

(C) 642

(D) 313

Question(2) A and B can divide 11/19 of a task together. At the same time, B and C can divide 14/19 of the same work. Accordingly, what will be the ratio of the working of A, B, C?

A और B मिलकर एक कार्य का 11/19 भाग कर सकते है | उतने ही समय में Bतथा C मिलकर उसी कार्य का 14/19 भाग कर सकते है | तदनुसार A,B,C के कार्य करने का अनुपात क्या होगा ?

(A) 5:6:8

(B) 3:5:4

(C) 2:7:8

(D) 1:7:5

Question(3) A and B can complete any work in 12 days and 15 days respectively. They started working together, but after 4 days A left the job. How many days have the remaining B alone completed?

A तथा B किसी कार्य को क्रमशः 12 दिन तथा 15 दिन में पूरा कर सकते है | उन्होंने मिलकर कार्य करना शुरू किया, लेकिन 4 दिन बाद A काम छोड़्कर चला गया | शेष कार्य को अकेले B ने आगे कितने दिनों में पूरा किया होगा ?

(A)12

(B)16

(C)6

(D)22

Question(4) A and B can complete any work in 9 and 12 days respectively. If they work alternately every day by starting A, how many days will it take to complete the work?

A तथा B किसी कार्य को क्रमशः 9 तथा 12 दिन में पूरा कर सकते हैं | A के आरंभ करके यदि वे बारी -बारी से एक -एक दिन काम करते हों तो कार्य को पूरा होने में कितने दिन लगेंगे ?

(A) 22/6

(B) 34/3

(C) 24/4

(D) 41/4

Question(5) A and B meet any work in 15 days. 50% more work than a B – a skilled craftsman. How long will A alone take to accomplish that task?

A तथा B मिलकर किसी कार्य को 15 दिन में पूरा करते है| B की तुलना में 50% अधिक कार्य – कुशल कारीगर है | अकेले A को उस कार्य को पूरा करने में कितना समय लगेगा ?

(A)25

(B)37

(C)33

(D)29

All Solutions (1-5):

Que(1).Ans-(D)

Que(2).Ans-(A)

Que(3).Ans-(C)

Que(4).Ans-(D)

Que(5).Ans-(A)

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