Question

30 cows can graze a field in 20 days.How many cows can graze a field twice as large in 25 days​

Answer 1

Given,

30 cows can graze a field in 20 days.

Let's, Cows graze in 25 days = 'x'

$\boxed {{\sf{30\;Cows → 20\;days}}\: \: \: \: \: \: \: \: \: \: \: \: \: {\sf{'x'\;cows → 25\;days}}}$

Field is twice for the "x" cows.

➝ $30×20 = x×25×2$

➝ $\Large\frac {30×20}{25×2} = x$

➝ $\Large\frac {600}{25×2} = x$

☞ $x = 48$

Total Cows is $\fbox\red {48\; cows}$

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