326. A bus travels at the speed of 36 km/hr, then the distance covered by it in one second is

1. 1. 10 metre

   
   
   

   2. 15 metre

   
   
   

   3. 12.5 metre

   
   
   

   4. 13.5 metre

   
   
   

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1. View Hint View Answer Discuss in Forum

   Speed of bus = 36 kmph.
   

   =		36 ×	5		m/sec. = 10 m/sec.
   			18

   
   ∴  Distance covered in 1 second = 10 metre

   Correct Option: A

   Speed of bus = 36 kmph.
   

   =		36 ×	5		m/sec. = 10 m/sec.
   			18

   
   ∴  Distance covered in 1 second = 10 metre

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327. Two buses travel to a place at 45 km./hr. and 60 km./hr. respectively.

     If the second bus takes 5	1	hours
     	2

     less than the first for the journey, the length of the journey is :

1. 1. 900 km.

   
   
   

   2. 945 km.

   
   
   

   3. 990 km.

   
   
   

   4. 1350 km.

   
   
   

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1. View Hint View Answer Discuss in Forum

   Time taken by bus moving at 60 kmph = t hours
   Distance = Speed × Time
   

   ∴  60 × t = 45 ×		t +	11
   			2

   
   

   ⇒  60t – 45t =	45 × 11
   	2

   
   

   ⇒  15t =	45 × 11
   	2

   
   

   ⇒  t =	45 × 11	=	33
   	15 × 2		2

   
   

   =	60 × 33	= 990 km.
   	2

   Correct Option: C

   Time taken by bus moving at 60 kmph = t hours
   Distance = Speed × Time
   

   ∴  60 × t = 45 ×		t +	11
   			2

   
   

   ⇒  60t – 45t =	45 × 11
   	2

   
   

   ⇒  15t =	45 × 11
   	2

   
   

   ⇒  t =	45 × 11	=	33
   	15 × 2		2

   
   

   =	60 × 33	= 990 km.
   	2

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328. A train is running at a speed of 116 km/hr. The distance covered by the train in metres in 18 seconds is :

1. 1. 900 metre

   
   
   

   2. 1160 metre

   
   
   

   3. 508 metre

   
   
   

   4. 580 metre

   
   
   

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1. View Hint View Answer Discuss in Forum

   Speed of train = 116 kmph
   

   =		116 ×	5		m/sec.
   			18

   
   

   =		580		m./sec.
   		18

   
   ∴  Required distance
   = Speed × Time
   

   =		580	× 18		metre
   		18

   
   = 580 metre

   Correct Option: D

   Speed of train = 116 kmph
   

   =		116 ×	5		m/sec.
   			18

   
   

   =		580		m./sec.
   		18

   
   ∴  Required distance
   = Speed × Time
   

   =		580	× 18		metre
   		18

   
   = 580 metre

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329. A man travels	3	th of the distance
     	4

     
     

     of his journey by bus,	1	th by rickshaw
     	6

     and 2 km on foot. The total distance travelled by the man is :

1. 1. 12 km

   
   
   

   2. 18 km

   
   
   

   3. 20 km

   
   
   

   4. 24 km

   
   
   

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1. View Hint View Answer Discuss in Forum

   Part of journey covered by bus and rickshaw
   

   =	3	+	1	=	9 + 2	=	11
   	4		6		12		12

   
   Distance covered on foot
   

   = 1 −	11	=	1	part
   	12		12

   
   ∴  Total journey
   = 12 × 2 = 24 km.

   Correct Option: D

   Part of journey covered by bus and rickshaw
   

   =	3	+	1	=	9 + 2	=	11
   	4		6		12		12

   
   Distance covered on foot
   

   = 1 −	11	=	1	part
   	12		12

   
   ∴  Total journey
   = 12 × 2 = 24 km.

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330. To cover a certain distance with a speed of 60 km/hr, a train takes 15 hours. If it covers the
     same distance in 12 hours, what will be its speed?

1. 1. 65 km/h

   
   
   

   2. 70 km/h

   
   
   

   3. 75 km/h

   
   
   

   4. 80 km/h

   
   
   

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1. View Hint View Answer Discuss in Forum

   Distance covered by train in
   15 hours = Speed × Time
   = (60 × 15) km. = 900 km.
   Required speed to cover 900 km.
   

   in 12 hours =	900	= 75 kmph
   	12

   Correct Option: C

   Distance covered by train in
   15 hours = Speed × Time
   = (60 × 15) km. = 900 km.
   Required speed to cover 900 km.
   

   in 12 hours =	900	= 75 kmph
   	12

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