Question

10 mat weavers can weave 100 mats in 20 days at the same rate how many mats would be woven by 5mat weavers in 10 days

Answer 1

in 20 days 10 weavers weaves 100 mats.
in 20 days 1 weaver weaves 100/10 mats.
in 1 day 1 weaver weaves 100 / (10*20) mats
in 10 days 5 weavers weaves (100*10*5)/(10*20) mats.
                                                = 25 mats.