If 22 men can build a wall of 110 meters in 10 days. The length of a similar wall built by 30 mem in 6 days is
100 mts
90 mts
80 mts
70 mts
Explanation:
$\dfrac{M_{1}D_{1}}{W_{1}}=\dfrac{M_{2}D_{2}}{W_{2}}$
$\dfrac{22\times 10}{110}=\dfrac{30\times 6}{W_{2}}$
$W_{2}=\dfrac{30\times 6\times 110}{22\times 10}$
$W_{2}=90mts$
$\dfrac{M_{1}D_{1}}{W_{1}}=\dfrac{M_{2}D_{2}}{W_{2}}$
$\dfrac{22\times 10}{110}=\dfrac{30\times 6}{W_{2}}$
$W_{2}=\dfrac{30\times 6\times 110}{22\times 10}$
$W_{2}=90mts$