$\begin{matrix} Bus & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 & 13 & 14 & 15 Time(hr:min) & 8 : 15 & 8 : 18 & 8 : 23 & 8 : 29 & 8 : 32 & 8 : 40 & 8 : 45 & 8 : 52 & 8 : 54 & 9 : 00 & 9 : 07 & 9 : 13 & 9 : 20 & 9 : 25 & 9 : 32 \end{matrix}$

In the above observation, how many buses have reached within 5 minutes?

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Solution

The correct option is B
7

$\begin{matrix} Bus & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 & 13 & 14 & 15 Time(hr:min) & 8 : 15 & 8 : 18 & 8 : 23 & 8 : 29 & 8 : 32 & 8 : 40 & 8 : 45 & 8 : 52 & 8 : 54 & 9 : 00 & 9 : 07 & 9 : 13 & 9 : 20 & 9 : 25 & 9 : 32 T i m e I n t e r v a l (i n m i n) & - & 3 & 5 & 6 & 3 & 8 & 5 & 7 & 2 & 6 & 7 & 4 & 7 & 5 & 7 \end{matrix}$

Buses 2, 3, 5, 7, 9, 12 and 14 reached within 5 minutes. Therefore 7 buses have reached within 5 minutes.

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Similar questions

$\begin{matrix} B u s & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 & 13 & 14 & 15 T i m e (h r : m i n) & 8 : 15 & 8 : 18 & 8 : 23 & 8 : 29 & 8 : 32 & 8 : 40 & 8 : 45 & 8 : 52 & 8 : 54 & 9 : 00 & 9 : 07 & 9 : 13 & 9 : 20 & 9 : 25 & 9 : 32 \end{matrix}$

In the above observation, how many buses have reached within 5 minutes?

$\begin{matrix} Bus & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 & 13 & 14 & 15 Arrival time(hr:min) & 8 : 15 & 8 : 18 & 8 : 23 & 8 : 29 & 8 : 32 & 8 : 40 & 8 : 45 & 8 : 52 & 8 : 54 & 9 : 00 & 9 : 07 & 9 : 13 & 9 : 20 & 9 : 25 & 9 : 32 \end{matrix}$

In the above observation, how many buses have arrived within 5 minutes of the bus just before them?

Question 5 (ii)
The following table gives the life times of neon lamps:
$\begin{matrix} Length (in hours) & Number of lamps 300 - 400 & 14 400 - 500 & 56 500 - 600 & 60 600 - 700 & 86 700 - 800 & 74 800 - 900 & 62 900 - 1000 & 48 \end{matrix}$
(ii) How many lamps have a life time of more than 700 hours?

Match the following:

$\begin{matrix} (i) P r o d u c e r & a) m a d e u p o f m a n y o v e r l a p p i n g f o o d c h a i n s (i i) C o n s u m e r & b) a n o r g a n i s m t h a t c o n v e r t s h e a t o r l i g h t e n e r g y i n t o c h e m i c a l e n e r g y (i i i) D e c o m p o s e r & c) s h o w s h o w e n e r g y i s l o s t a s i t i s t r a n s f e r r e d u p t h e f o o d c h a i n (i v) F o o d C h a i n & d) a n o r g a n i s m t h a t g e t s i t s e n e r g y b y e a t i n g p l a n t s o r a n i m a l s (v) F o o d W e b & e) s h o w s o n e s e t o f f e e d i n g r e l a t i o n s h i p s b e t w e e n a p r o d u c e r a n d s e v e r a l c o n s u m e r s (v i) E n e r g y P y r a m i d & f) o r g a n i s m t h a t b r e a k s d o w n d e a d p l a n t s a n d a n i m a l s i n t o s i m p l e r c o m p o u n d s \end{matrix}$

The list below shows the number of members in 20 families in a village.

Make a frequency table and then answer these questions:

(i) How many families have exactly 6 members?

(ii) How many have fewer than 5 members?

(iii) How many have just 2 members?

Now make three such questions of your own.

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Bus123456789101112131415Time(hr:min) 8:158:188:238:298:328:408:458:528:549:009:079:139:209:259:32 In the above observation, how many buses have reached within 5 minutes?

The correct option is B 7 Bus123456789101112131415Time(hr:min)8:158:188:238:298:328:408:458:528:549:009:079:139:209:259:32Time Interval(in min)−35638572674757 Buses 2, 3, 5, 7, 9, 12 and 14 reached within 5 minutes. Therefore 7 buses have reached within 5 minutes.