Sushma was counting down numbers from 44 one at a time. Neelima was counting upwards starting from 11 and she was counting only odd numbers. If they both call at the same speed, which common number will they call out at the same time?

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Solution

The correct option is B 33
$R a h u l e a r n s R s 60 o n o d d d a y s a n d s p e n d s R s 50 o n e v e n d a y s A t t h e e n d o n d a y 2, m o n e y l e f t w i t h R a h u l = R s 10, A t t h e e n d o f d a y 3 m o n e y w i t h h i m b e f o r e s p e n d i n g = R s 70 = 10 + 60, I n a s i m i l a r m a n n e r, l e t s s a y r a h u l h a s R s 200 b e f o r e s p e n d i n g a f t e r x + 1 d a y s, O n t h e l a s t d a y, h e w i l l e a r n R s 60, I n x d a y s, h e w o u l d h a v e e a r n e d R s 10 e v e r y 2 d a y s = 200 - 60 = R s 140 ⟹ \frac{x}{2} * 10 = 140, x = 28, R a h u l h a s R s 200 b e f o r e s p e n d i n g a f t e r 29 d a y s$

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32.

1

t

N_{0}

4 t

\frac{N_{0}}{16}

(\frac{11}{2}) t

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