75.
A and B undertake a piece of work for ₹ 250/-. A alone can do that work in 5 days and B alone can do that work in 15 days. With the help of C, they finish the work in 3 days. If everyone gets paid in proportion to work done by them, the amount C will get is:
-
₹ 50/-
-
₹ 100/-
-
₹ 150/-
-
₹ 150/-
A.
₹ 50/-
A's 1 day's work =
B's 1 day's work =
(A + B + C)'s 1 days work =
C's 1 day's work:
Ratio of workdone by A, B and C:
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10 Questions 20 Marks 12 Mins
Given:
Efficiency of A = 2 × Efficiency of B
They together can complete the whole work in 18 days
Concept Used:
Work = Efficiency × Time
Calculation:
We have
Efficiency of A : Efficiency of B = 2 : 1
Efficiency of (A + B) = 3
Total Work = 3 × 18 = 54 units
A alone can do this work in 54/2 days [Total work/efficiency of A]
⇒ 27 days.
∴ The time taken by A to complete the work is 27 days.
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Correct Answer:
Description for Correct answer:
B A 1 2\( \Large \rightarrow Efficiency ratio \) Total work =\( \Large 16 \times \left(1+2\right)=48 \) No. of days taken by A to complete the work
=\( \Large \frac{48}{2}=24 \) days
Part of solved Time and work questions and answers : >> Aptitude >> Time and work
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