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?
Let the required number of bottles be x.
More weavers, More mats (Direct Proportion)
More days, More mats (Direct Proportion)
Wavers 4:8Days 4:8 :: 4:x
4 x 4 x x = 8 x 8 x 4
=> x= 8*8*44*4
=> x = 16.
Reflection of the point (2,-4) in the origin is
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