Latest CTS Aptitude Question SOLUTION: There is a thread of length 100m. You need to cut the thread into pieces of 1m length. For first cut the thread becomes two pieces 1m, 99m. So in total how many Cuts are required?

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There is a thread of length 100m. You need to cut the thread into pieces of 1m length. For first cut the thread becomes two pieces 1m, 99m. So in total how many Cuts are required?

Asked In CTS js manikanta (11 years ago)

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ashish sharma  (11 years ago)

using 1 m thread fold the remaining 99m thread in 1 m folds and on finishing the thread of 99m cut the 2 sides of folded ends of thread and in 2 folds you will get the pieces of thread in 1m

Is this solution Helpfull? Yes (25) | No (4)  

ashish sharma  (11 years ago)

using 1 m thread, fold the remaining 99m thread in 1 m folds and on finishing the thread of 99m cut the 2 sides of folded ends of thread and by 2 cuts you will get the pieces of thread in 1m each.So total 3 cuts are required.
First one for first 1 m piece and other 2 as explained above.Thank You.

Is this solution Helpfull? Yes (17) | No (2)  

SOURAV BHOWMICK  (11 years ago)

for 5 meter thread we need 4 cuts
for 10 " " " " 9 "
" " " " " " " "
" " " " " " " "
for 100 " " " " 99 "
for n " " " " (n-1)"

Is this solution Helpfull? Yes (10) | No (1)  

sahaj  (11 years ago)

if we proceed cytting the thread as (1m,99m), then (1m,98m)... so on.. then 99 cuts are required.

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MARTHA RAVI TEJA  (11 years ago)

ans is 99....
after 98th cut we will get 98 pieces..
then at 99th cut 2 pieces..totally 100..

Is this solution Helpfull? Yes (5) | No (3)  

MD MOTAHAR HOSSAIN  (11 years ago)

ans is 99....
after 98th cut we will get 99 pieces..
we don't have to cut at the 99th piece .
then at 98th cut we get 2 pieces..totally 100..

Is this solution Helpfull? Yes (2) | No (2)  

tamoghna purkayastha  (11 years ago)

total 99 cuts are required. Because after 99 cuts last 1m thread reamins.

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bvs sharma  (11 years ago)

for first cut- 1->2 pieces(1,99),2n cut->3 pieces(1,1,98)......98th cut->(99*1m,1)
so ans is 98 cuts

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J  (10 years ago)

In questions like these there is only one simple Formula--- PIECES= CUTS + 1.
Here,pieces= 100 (since it's a 100m thread and we want pieces of 1m each,so total pieces obtained is 100).
Acc,to the formula-
100=cuts + 1
hence,cuts = 99

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bhargava  (10 years ago)

Ans is very simple.
need 99 cuts

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Mani kandan  (10 years ago)

ans is 99m.
thread length=100m
for 1st 1m cutting,remaining=99m
for 2nd 1m cutting,remaining=98m
.
.
for 98th cutting,remaining=2m
for 99th cutting,remaining=1m
so total 99+1=100

Is this solution Helpfull? Yes (1) | No (1)  

Rashmi Chouhary  (11 years ago)

99 cuts.. 100-1 cuts

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KARTHICK K S  (11 years ago)

No.of cuts =no. Of pieces - 1.
=100 -1
=99.

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lavanya  (11 years ago)

let consider 2m length of thread,nd d cut required to get pieces of 1m is 1. nd terfore cut required for 100m length is 99 ....

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K.Neelima  (10 years ago)

answer will be 4.

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ved prakash  (9 years ago)

99 cuts as because in the 99th cut it will get divided into 100 pieces of 1m length

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sunil  (9 years ago)

ANS is 99
length of thread is 100
final thread will be cut two pieces
1****99
2****99
*******
*******
99*****100 last cuts two pieces
so cuts only 99 times

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