Arjun can tile a terrace in 16 days and Bina in 24 days. Arjun works alone for 4 days, and then Bina finishes the job alone. The total payment is ₹7,200, shared by the work each did. How much does Bina get?

₹1,800Correct answerYour answer₹2,880Correct answerYour answer₹3,600Correct answerYour answer₹5,400Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer D

Correct answer: D

Arjun's 4 days = $\frac{4}{16} = \frac{1}{4}$ of the job.
Bina does the remaining $\frac{3}{4}$ .
Bina's share = $\frac{3}{4} \times 7200 = ₹5{,}400$ .

Worth noting

They did not work for the same time, so the efficiency ratio $3 : 2$ does not apply here; ₹2,880 comes from wrongly using it. ₹1,800 is Arjun's share.

Concept: Wages by work done when workers put in different days
Typical timeTypical: 70 s
Your timeYours: —

The rule this testsEfficiency and wages

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Ten questions from Time & Work, at your own pace.

Arjun can tile a terrace in 16 days and Bina in 24 days. Arjun works alone for 4 days, and then Bina finishes the job alone. The total payment is ₹7,200, shared by the work each did. How much does Bina get?

Explanation