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Train A can cross a 180m long plat form in 90 seconds. Train B has a speed which is twice that of A. A's length is 90% of that of B. B can cross a 200 m long platform in x seconds. Find x.
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value of x=50sec
by mistake metre likh diye h
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by mistake metre likh diye h
plz mark in brainlist
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NAVEEN11234:
i don't know hindi
i put the value of Lb in the above equation
how 10La came
length of La=90% of Lb.
=9/10 Lb
or Lb=10La/9
but u wrote 10La/9
ok
in the last before step why u wrote 10La
Please tell how
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