Question

*4 laboures complete a work in 20 days then in how many days will 5 labouers complete the same work?*

1️⃣ 10
2️⃣ 20
3️⃣ 16
4️⃣ 80​

Answer 1

Answer:

16

Step-by-step explanation:

ans is 16

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Answer 2

Answer:

Five labors will complete the same work in 16 days.

Step-by-step explanation:

• To complete same work, if labors increase then time or days will decrease. So labor number and days are inversely proportional.

The relation can be expressed as, labors ∝ $\frac{1}{days}$

                                                       labors × days = constant

• Initially 4 labors complete the work in 20 days, so we can write,

                   4 × 20 = constant...................(1)

  Suppose 5 labors complete the work in 'n' days, so the expression will be:              5 × n = constant......................(2)

Comparing equation (1) and (2),  4 × 20 = 5 × n

                                                        n = $\frac{4\times 20}{5}$ = 16 days.

  ∴ Five labors will complete the same work in 16 days.

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