mother kangaroo is playing a game with her baby. she covers a distance of 1 m in 1 jump and her baby covers a distance of half m in 1 jump. if mother kangaroo takes 1 sec to jump 3 steps forward and 1 step backward in another sec, then how many sec would she take to cover a cover of 11 m?

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Solution

Dear Student,

$I n 1 s t e p t h e k a n g a r o o c o v e r s 1 m i n 3 s t e p s i t w o u l d c o v e r 3 m N o w k a n g a r o o t a k e s 3 s t e p s i n 1 s e c o n d h e n c e 3 m i s c o v e r e d i n 1 s e c o n d a n d 1 s t e p b a c k i n a n o t h e r s e c o n d H e n c e i n 2 s e c o n d s i t c o v e r s 3 - 1 = 2 m e t e r s i n 8 s e c o n d s i t w o u l c o v e r 8 m i n 9 t h s e c o n d i t c o v e r a g a i n 3 m e t e r f o r w a r d H e n c e t o t a l 8 + 3 = 11 m e t e r a r e c o v e r e d i n 9 s e c o n d s$

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