Thank you!
Kushal3692 for taking time and responding.
However, I still don't seem to actually "get" the question stem. What I understand from this part of the question stem - "
with the pieces overlapping by 4cm at each joint" is each joint must be 4cms. Meaning 1st and 5th Rod has 4cms joint, 2nd, 3rd, 4th rod has 4+4 = 8 cms joint. In which case the answer has to be 26.4.
I agree with
mcdo on this. I think its a poorly worded question. if the above highlighted portion of the stem reads - "
with the pieces overlapping by 4cm at each rod" or something on those lines then each joint must be 2cms. Meaning 1st and 5th Rod has 2cms joint, 2nd, 3rd, 4th rod has 2+2 = 4 cms joint. In which case the answer has to be 23.2.
The trap I guess is the wording of the stem and how we interpret it. Thanks again to both of you for the response!
Kudos to both of your for the response
Kushal3692 wrote:
Hi susheelh,
You are subtracting 4cm twice.. from upper wires and from the lower wires. Now since you are deducting 4 cm from both sides from both upper wires, you don't have to deduct it from bottom wires because those bottom wires will compensate for the 4cm reduction from both ends of upper wires.
So the length of your wires would be A, A-8, A, A-8, A and their sum would be 100
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