Question

If 12 labour can earn rs 12240 in 12 days. How many labours can earn rs 6800 in 8 days? (in inverse variation without unitary method)​

Answer 1

Given :

• 12 Labours can earn Rs. 12240 in 12 Days.

To find :

• How much labourers can earn Rs. 6800 in 8 Days ?

According to the question :

• No. of. Labourers = 12
• No. of. Days = 12 Days
• Earnings = 12240

• No. of. Labourers = ?
• No. of. Days = 8 Days
• Earnings = 6800

12 Days and 12 Labourers = 12 × 12 = 144

12 Labourer's earnings for 12 Days = 12240

$⟶\sf\dfrac{12240}{144}$

$⟶\sf{1\:Day\:=\:Rs.85}$

$⟶$Earnings for 8 Days will be $⟶\sf{8×85}\:=\:680$

To find the no. of. Labourers :

$⟶$Amount Earned for 8 Days / Earnings for 8 Days

$⟶$6800 / 680

$⟶$10

∴ 10 labours can earn Rs. 6800 in 8 days.