Question

five workers take 12 days to weed a field . how many days would 6 workers take ? how many days would 15 take ?

Answer 1

5 take 12 days so 6×12÷5
14.4 days means 24 and half days
and likewise of 25 days

Answer 2

Given: 5 workers take 12 days to weed a field

Need to find: The number of days would 6 workers take, and the number of days 15 would take.

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$:\implies \sf 6x= 5 \times 12 = 15y\\\\:\implies \sf x = \dfrac{5 \times \cancel{12}}{\cancel6}\\\\:\implies \sf x= 5 \times 2\\\\:\implies \sf \underline{\boxed{\sf x = 10}} \; \bigstar$

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$:\implies \sf 15y = 5 \times 12\\\\\\:\implies \sf y = \dfrac{\cancel5 \times 12}{\cancel{15}}\\\\\\:\implies \sf y = \dfrac{\cancel {12}}{\cancel3}\\\\\\:\implies \underline{ \boxed{\sf y = 4}} \; \bigstar$

$\therefore \underline{\sf 6 \;workers \;would \; tale \; 10 \;days, and \;15 \; would \; take \; 4 \; days.}$