Multiple choice

A can do a work in 40 days while B can do the same work in 45 days . If A work for ‘y’ days while B work for (y+0.625) days then one-fourth of the work is completed . Find the value of ‘y’ .

  1. 3

  2. 7

  3. 5

  4. 6

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A's 1-day work = 1/40, B's 1-day work = 1/45. Total work: y/40 + (y+0.625)/45 = 1/4. Solving gives y = 5. This is a standard work equation where rates add and time multiplies.

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