Management Aptitude Test 2015 Paper

(c) Here ${\mathit{M}}_1$ = 10 , ${\mathit{D}}_1$ = 10 , ${\mathit{T}}_1$ = 10 and ${\mathit{M}}_2$ = 20 , ${\mathit{D}}_2$ = ?, ${\mathit{T}}_2$ = 5
According to the formula,
${\mathit{M}}_1\times {\mathit{D}}_1\times {\mathit{T}}_1$ = ${\mathit{M}}_2\times {\mathit{D}}_2\times {\mathit{T}}_2$
⇒ 10 x 10 x 10 = 20 x ${\mathit{D}}_2$ x 5
⇒ $\frac{10\times 10\times 5}{20\times 5}$ = ${\mathit{D}}_2$
∴ ${\mathit{D}}_2$ = 10days
Therefore, the work will be completed in 10 days.