Puzzles for Software Engineers | Google #3

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[devanandareddy]

STEP 1 :- A & B Go first - 2 min
STEP 2 :- A return - 1 min
STEP 3 :- C & D - 10 min
STEP 4 :- B return - 2 min
STEP 5 :- Last A & B - 2min
Total :- 17 min

[gamearina]

A, B = 2 Min
A returns = 1 min
C, D = 10 min
B returns = 2 Min
A, B = 2 min

Total = 17 Min

[bhavya]

A&D goes together *(took 10 mins)*
A brings the boat back in *1 min*
A&C goes together *(took 5 mins)*
A brings the boat back in *1 min* again
Then finally A&B goes together in *2 mins*
=10+1+5+1+2
=19 minutes

[N....]

Pehle A aur B ko sath me bhejenge to dono ko Nadi par karne me 2minute lagenge kyuki dono sath me Gaye phir A boat lekar wapas aa jayega yani 1minuteaur phir C ko le jayega jisme 5min lagega phir D ko le jayega jisme D ko le jayega jisme 10minute lagenge
Total-( 2+1+5+1+10)min =19minute

[KetanMishra-qpuq]

A, b = 2min😊😊 c, d. = 10min 😊😊 total= 12min

[KalpeshJadhav-zf]

A&B go =1
A return=1
A&C go=1
A return= 1
A&D go =1
=6 min

[srijansamanta]

This is an awesome really wait for this everyday

[ChandanKumar-lgyu]

A&B= 2min
A ko boat wapas lane mai = 1min
A&C = 5min
Fhir A ko boat wapas lane mai = 1min
A & D = 10 min
Total 19 min

[NitishaChoudhary-ck]

Welcome to CRD
comment reading department 😂😂

[mrkumarawanish]

Total: 19
To cross A+B: 2 min
To return A back: 1min
To Cross A+C: 5 min
To return A back: 1min
To Cross A+D: 10 min
Total: 19 min

[GoluChaudhary]

12, minutes is right answer 10, 5=10 1, 2=2

[Barnwalji]

A and C go first (5) then A will return (1 min) and A and D will go (10+1=11) and A will return(1 min) and after that B and A will go(2)= 19

[PINAL.R.TADAVI]

A+D=1min return 1min =2min
A+c=1min return 1min =2min
A+B=1min =1min
Total =5min

[lookanythings.]

1-A+B =2mint
रिटर्न A=1mint
2-A+C=5mint
रिटर्न A=1mint
3-A+D=10mint
Total =19 mints

[boridofz]

1) A+B= 2 MINUTES
2) A back to other side= 1 Minute
3) C+D= 10 MINUTES
4) B back to other side= 2 MINUTES
5) Again, A+B= 2 MINUTES

TOTAL= 17 MINUTES 👍🏼

[tannukumari]

I think 19 because a+b goes and take 2mins a will come for b then he take 1min 2+1=3min, a+c goes both will take 5min a will come for d in 1min 5+1=6 a+d goes both will take 10min = 10+ 6+3=19

[munnaislam]

step:1-First A &B go =2min
step:2-A returns=1min
step:3 C&D go =10min
step:4 B returns to take A=2min
step:5 A&B go =2min
result =2+1+10+2+2=17 min 🥰

[gouransh]

Firstly the A and B will go together taking 2 min and A will return in 1 min then to group the maximum times together C and D will go taking 10 min and B will return from the other side in 2 min and finally A and B will go in 2 min
Total time = 2+1+10+2+2= 17 mins .

[MdMizanurRahaman-epyt]

Yup! It's 17....
Those who didn't understood - first a+b=2mins then a=1min will return and stay and let c+d=10mins then they both will stay on the other side and b=2 will return and then a+b=2 . So it's 2+1+10+2+2=17 mins.

[bhaveshnandave]

Why These A and B are getting Return . once they have cross the River

Step 1 = A+B go --> 2mins

step 2 = C+D go --> 10mins

Total = 12mins

Can anyone Explain Why Answer is 17