A person ordered 5 pairs of black socks and some pairs of brown socks – McqOptions

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1.	A person ordered 5 pairs of black socks and some pairs of brown socks. The price of a black pair was thrice that of a brown pair while preparing the bill the bill clerk inter-changed the number of black and brown pairs by mistake which increased the bill by 100% what was the number of pair of brown socks in the original order?
A.	10
B.	15
C.	20
D.	25
Answer» E.

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