Question

20 worker complete a work in 12 days in how many days will 15 worker finish the same work​

Answer 1

Required Answer:-

The relation between worker and days is an indirect proportion. The question will arise Why?!

• It is because if workers increase, days required to complete the work would decrease and vice versa.

Hence,

Mathematically, we can represent their relation like this:

$\large{ \underline{ \boxed{ \bf{W_1D_1 = W_2D_2}}}}$

We have:

• W1 = 20
• D1 = 12
• W2 = 15

To FinD:

• D2 = ?

Let's plug the values then:

⇒ W1.D1 = W2.D2

⇒ D2 = W1.D1 / W2

⇒ D2 = 20 × 12 / 15

⇒ D2 = 16 days.

Therefore:-

• 15 workers can complete the work in 16 days.

Answer 2

$\huge{\boxed{\red{\sf{Required \: answer:-}}}}$

The relation between worker and days is an indirect proportion. The question will arise Why?!

= It is because if workers increase, days required to complete the work would decrease and vice versa.

Hence,

Mathematically, we can represent their relation like this:

$\large{ \underline{ \boxed{\blue{ \bf{W_1D_1 = W_2D_2}}}}}$

We have:

• W1 = 20
• D1 = 12
• W2 = 15

To FinD:

• D2 = ?

Let's plug the values then:

⇒ W1.D1 = W2.D2

⇒ D2 = W1.D1 / W2

⇒ D2 = 20 × 12 / 15

⇒ D2 = 16 days.

15 workers can complete the work in 16 days.