Work and Reading Speed Division

Question

Albela, Bob and Chulbul have to read a document of seventy eight pages and make a presentation next day. They realize that the article is difficult to understand and they would require teamwork to finish the assignment. Albela can read a page in 2 minutes, Bob in 3 minutes, and Chulbul in 4 minutes. If they divide the article into 3 parts so that all three of them spend the equal amount of time on the article, the number of pages that Bob should read is

A.
24
B.
25
C.
26
D.
27
E.
28

Answer

A

Explanation

Reading rates (pages per minute): Albela = $1/2$ , Bob = $1/3$ , Chulbul = $1/4$ . In time $T$ , total pages = $T(1/2 + 1/3 + 1/4) = T(13/12) = 78 \implies T = 72$ minutes. Pages read by Bob = $72 \times 1/3 = 24$ .

Accepted Answer

A. Reading rates (pages per minute): Albela = $1/2$, Bob = $1/3$, Chulbul = $1/4$. In time $T$, total pages = $T(1/2 + 1/3 + 1/4) = T(13/12) = 78 \implies T = 72$ minutes. Pages read by Bob = $72 	imes 1/3 = 24$.

Answer

24

Answer

25

Answer

26

Answer

27

Answer

28

Work and Reading Speed Division

Explanation

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Practise this under exam conditions