Question

A, B and C three weavers have to supply an order
of 100 shawls. A can weave a shawl in 2 hours,
B in 3 hours and C in 4 hours respectively. It is
known that even being a joint contract each one
weaves his own shawl completely i.e., no other
weaver help to the rest weavers. In how many
hours they will complete the order irrespective
of day or night?​

Answer 1

A can weave a shawl in =2hrs

B can weave a shawl in =3hrs

C can weave a shawl in =4hrs

If joint together=

3 shawl = 2+3+4 hrs

3 shawl = 9 hrs

1 shawl = 9/3hrs

1 shawl = 3 hrs

100 shawl =100×3

= 300 hrs

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