Mathematics Question For Railway Group D,RPF, Rajasthan SI 23-09-2018

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Question(1) Mohit can complete any work within 20 days and Mohan 40 days. Starting by Mohit, they rotate for one day. On which day will the work be completed?

 मोहित किसी कार्य को 20 दिन तथा मोहन 40 दिन में पूरा कर सकते है | मोहित द्वारा आरंभ करके वे बारी बारी से एक एक दिन कार्य करते है | किस दिन कार्य पूरा होगा ?

(A)27

(B)55

(C)22

(D)33

Question(2) Mohan can complete any work within 18 days and Ramesh in 12 days. They started working together, but Ranch left the work three days before the completion of the work. How many days does it take to complete the work?

 मोहन किसी कार्य को 18 दिन तथा रमेश 12 दिन में पूरा कर सकता है | उन्होंने एक साथ मिलकर कार्य करना आरंभ किया किन्तु रनेश कार्य समाप्ति से 3 दिन पूर्व कार्य छोड़कर चला गया | कार्य को पूरा होने में कुल कितने दिन लगे ?

(A)19

(B)18

(C)9

(D) 4

Question(3) Chetan and Monu can complete any work within 18 days. Monu and Sonu in 24 days and Chetan and Sonu in 36 days. In how much time can the three of them work together?

 चेतन और मोनू किसी काम को 18 दिन में पूरा कर सकते है | मोनू और सोनू 24 दिन में और चेतन और सोनू 36 दिन में | तीनों एक साथ काम करके उसे कितने समय में पूरा कर सकते है ?

(A)11

(B)16

(C)12

(D)14

Question(4) A task, B takes more than 5 hours, compared to A. Together they completed that work in 6 hours. How much time does one take to accomplish that task alone?

किसी कार्य को पूरा करने में A की तुलना में B , 5 घंटॅ अधिक लेता है | उन्होंने मिलकर उस कार्य को 6 घंटे में पूरा किया | A अकेला उस कार्य को पूरा करने में कितना समय लेता ?

(A)30

(B)12

(C)22

(D)10

Question(5) A and B can complete any work in 9 and 12 days respectively. Starting from A, if they rotate one by one, how many days will it take to complete the task?

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

(A) 41/4

(B) 42/3

(C) 36/4

(D)23/12

All Solutions (1-5):

Que(1).Ans-(A)

Que(2).Ans-(C)

Que(3).Ans-(B)

Que(4).Ans-(D)

Que(5).Ans-(A)

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