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New Anna University (UG / PG) Nov/Dec 2016 and Jan 2017 Theory , Practical Exam Timetable
>>> Anna University Sixth Semester Question Bank Collection (R2013) ECE,MECH,CSE,IT,EEE,CIVIL,EIE
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Puzzle for today

bro.,can you just explain how the answer came?

MUKIL, proud to be a member of Vidyarthiplus.com (V+) - Online Students Community since Mar 2013.


explanation :
1) Faster one can do 1/2 of work in one hourslower one can do 1/3 of work in one hourboth they do (1/2+1/3=5/6) th work in one hour.so work will b finished in 6/5=1.2 hour i e 1 hour 12 min.

2) Volume of rectangle:- l*b*h= 8*11*2=176 Volume of rod:- (22/7)*(r^2)*l=(22/7)*(4^2)*lSolving(22/7)*16*l=176(22/7)*l=11l=7/2l=3.5 inchesThe length of rod is 3.5 inches

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