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 ?
Solution
Correct Answer: Option C
Solution:
4 mat-weaver 4 দিনে 4টি Mat সেলাই করে । 8 mat-weaver 8 দিনে কয়টি Mat সেলাই করবে ?
4 mat-weaver 4 দিনে সেলাই করে = 4 টি Mat
8 mat-weaver ৪ দিনে সেলাই করে = \(\frac{{4 \times 8 \times 8}}{{4 \times 4}}\) = 16 টি Mat
Shortcut: \(\frac{{{M_{1\;}}{D_1}}}{{{W_{1\;}}}} = \frac{{{M_{2\;}}{D_{2\;}}}}{{{W_2}}}\)
=> \(\frac{{4 \times 4}}{4} = \frac{{8 \times 8}}{{{W_2}}}\)
W2 = 16টি ।
Shortcut: \(\frac{{{M_{1\;}}{D_1}}}{{{W_{1\;}}}} = \frac{{{M_{2\;}}{D_{2\;}}}}{{{W_2}}}\)
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