| 4 mat-weavers can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 mat-weavers in 8 days? |
A) 4
B) 8
C) 12
D) 16
Correct Answer: D
Solution :
| Let the required number of mats be x. More weavers, More mats [Direct proportion] |
| More days, More mats [Direct proportion] |
| \[\left. \begin{matrix} \text{Weavers} & 4:8 \\ \text{Days} & 4:8 \\ \end{matrix} \right\}::4:x\] |
| \[\therefore \] \[4\times 4\times x=8\times 8\times 4\]\[\Rightarrow \]\[x=\frac{8\times 8\times 4}{4\times 4}=16\] |
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