a) 50000 metres
b) 100000 metres
c) 150000 metres
d) 200000 metres
Answer: b
Explanation: Length of cloth produced by A and B in 10 hours
$$ = 300000{\text{ metres}}$$
Length of cloth produced by B in 10 hours
$$\eqalign{
& = \left( {\frac{{300000}}{{15}} \times 10} \right) \cr
& = 200000{\text{ metres}} \cr} $$
Length of cloth produced by A in 10 hours
$$\eqalign{
& = \left( {300000 – 200000} \right) \cr
& = 100000{\text{ metres}} \cr} $$
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