It takes Mr. Aakash ‘a’ hours to complete typing a manuscript. After 3 hours, he was called away. What fractional part of the assignment was left incomplete?
Explanation:
Aakash completes the assignment in a hours
So, in 1 hour he completes 1/ath of the assignment
So, in 3 hours he will complete 3(1/a) = 3/a of the assignment
Left assignment = 1 – (3/a) = (a - 3)/a
Hence, option (e).
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