A ladder 15 m long reaches a window which is 9 m above the ground on o – McqOptions

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1.	A ladder 15 m long reaches a window which is 9 m above the ground on one side of street. Keeping its foot at the same point, the ladder is turned to the other side of the street to reach a window 12 m high. What is the width of the street:
A.	31 m
B.	12 m
C.	30 m
D.	21 m
E.	None of these
Answer» E. None of these

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