Latest CTS Aptitude Question SOLUTION: Four persons can cross a bridge in 3,7,13,17 minutes.Only two can cross at a time.Find the minimum time taken by the four to cross the bridge? a)10 b)106 c)34 d)20

• Placement Papers
• /
• CTS
• /
• Numerical Ability
• /
• LCM and HCF

CTS Question Papers: CTS Interview Experience(3) CTS Company Profile

(#M40106632) CTS Numerical Ability question Keep an EYE

Four persons can cross a bridge in 3,7,13,17 minutes.Only two can cross at a time.Find the minimum time taken by the four to cross the bridge?
a)10 b)106 c)34 d)20

Asked In CTS Meenakshi (9 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (2)   (1) Submit Your Solution LCM and HCF

Read Solution (2) :

Amit kumar gupta  (9 years ago)

Ans: 20 minutes
First send 17 and 7. After 7 minutes, 7 is at finish and 17 needs 10 more minutes to complete his travel. now send 13. After 10 minutes 17 reaches finish and 13 needs 3 more minutes to complete. now send 3. both 3 and 13 reach destination at the same time after 3 minutes. hence the time taken is 7+10+3=20 minutes..

Is this solution Helpfull? Yes (12) | No   

saurabh sharma  (9 years ago)

20 is the answere bcoz 1st 13 nd 17 gone. after 13 min 7 person gone afet 4 min 3 min person also gone. so total time is (13+4+3)= 20

Is this solution Helpfull? Yes (3) | No   

Please Login to Read Solution.