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4men can paint the room in 5 days. if the painting should finish in 2 days, how many men will be hired?

Sagot :

Questaliaviz

INVERSE PROPORTION:

*If the painting should be finished in 2 days, then 10 men will be hired.

(My solution):

METHOD 1:

  • 4 men × 5 days = N × 2 days

  • 4 men × 5 / 2 (how many man are needed to paint the room in 1 day)

  • 20 men / 2

  • 10 men

*Re-check

  • 4 × 5 = 10 × 2
  • (4 × 5) = 20 = (10 × 2) = 20

METHOD 2

  • [in the pic]

View image Questalia