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A can complete a work alone in 10 days. A & B together complete it in 8 days. How many days can B alone complete the same work?
  1. 30 days
  2. 40 days
  3. 20 days
  4. 25 days
Explanation
Step 1: A’s 1-day work


Step 2: A + B’s 1-day work

Step 3: B’s 1-day work

Find LCM of 8 and 10 = 40:

Step 4: Days B alone will take

Related MCQs

  1. 1 hour
  2. 2 hours
  3. 3 hours
  4. 4 hours
اس سوال کو وضاحت کے ساتھ پڑھیں

  1. 29 days
  2. 39 days
  3. 39 days
  4. 59 days
اس سوال کو وضاحت کے ساتھ پڑھیں

  1. 3.27 hours
  2. 3.5 hours
  3. 4 hours
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں

  1. 1:45 PM
  2. 1:50 PM
  3. 1:55 PM
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں

  1. 43.71 m
  2. 40 m
  3. 42 m
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں

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