please explian me the solution of the question (separate 9 pearls in 3 group each contian 3 pearls. put one set of 3 pearls on one side of balance and second set of 3 pearls on second side of the balance and keep one set 0f 3 pearls with youseparately and now lift the balance we can recognize the pearls of less weight is in which group of the 3 pearls)

Asked by isjamrezaul08 | 7th Jun, 2014, 09:44: AM

Expert Answer:

T h i s space i s space a space c a s e space o f space b i n a r y space s e p a r a t i o n. space  I n space t h e space c a s e space o f space c o m p a r i s i o n s comma space w e space g e n e r a l l y space f o l l o w space b i n a r y space c o m p a r i s i o n space b e c a s u e space w e space c a n space c o m p a r e space t w o space i t e m s space e a s i l y.  S o space q u e s t i o n space i s comma space T h e r e space a r e space 9 space p e a r l s space a n d space o n e space w i e g h i n g space b a l a n c e. space W e space n e e d space t o space f i n d space t h e space o n e space p e a r l space w i t h space l e s s space w e i g h t space i n space 2 space a t t e m p t s.  I n space o r d e r space t o space f i n d space t h a t comma space w e space n e e d space t o space s e p a r a t e space t h e m space i n t o space e q u a l space n u m b e r space o f space g r o u p s space o f space e a c h space w i t h space e q u a l space n u m b e r space o f space i t e r m s space a s space t h e space n u m b e r space o f space g r o u p s  I n space t h i s space c a s e space i t space i s space 9 space p e a r l s comma space s o space g r o u p s space a r e space 3 space a n d space e a c h space g r o u p space h a s space 3 space p e a r l s  N o w space w e i g h space t w o space g r o u p s space o n space w e i g h i n g space b a l a n c e. space I f space t h e space f a u l t y space p e a r l space i s space n o t space p r e s e n t space i n space t h i s space g r o u p space t h e n space w e i g h space b a l a n c e space w o u l d space b e space n o r m a l space a n d space t h e space f a u l t y space p e r a l space i s space i n space 3 r d space g r o u p  N o w space t a k e space t h e space 3 r d space g r o u p space a n d space t a k e space 2 space o u t space o f space t h e m space a n d space w e i g h. space I f space t h e space f a u l t y space i s space n o t space p r e s e n t space i n space t h i s space 2 space t h e n space t h e space r e m a i n i n g space o n e space i s space t h e space f a u l t y space i n space 3 r d space g r o u p  I f space t h e space f a u l t space o n e space p r e s e n t s space i n space t h e space 2 space w e space p i c k e d space i n space 3 r d space g r o u p comma space t h e n space w e space c a n space e a s i l y space i d e n t l f y space i t space f r o m space c o m m o n space b a l a n c e space w h i c h space w e i g h s space l e s s.  N o w space c o m i n g space t o space f i r s t space c a s e space i f space t h e space f a u l t y space p e a r l space l i e s space i n space t h e space o n e space o f space t h e space g r o u p s space w e space p i c k e d space i n space t h e space b e g i n n i n g comma space t h e n space w i t h space t h e space h e l p space o f space c o m m o n space b a l a n c e space w e space c a n space f i n d space w h i c h space g r o u p space i s space l e s s space w e i g h e d  A n d space o n c e space w e space f i n d space t h e space f a u l t y space g r o u p space w e space u s e space s a m e space c a s e space a s space t a k i n g space 2 space f r o m space t h e space f a u l t space g r o u p space a n d space r e p e a t i n g space t h e space a b o v e space p r o c e d u r e.  S o space w e space c a n space f i n d space t h e space f a u l t y space p e a r l space i n space 2 space a t t e m p t s.

Answered by Dharma Teja | 7th Jun, 2014, 06:47: PM

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