1156 . A train of length 150 metres takes 40.5 seconds to cross a tunnel of length 300 metres. What is the speed of the train in km/hr?

A. 13.33
B. 26.67
C. 40
D. 66.67

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Answer: Option C

Explanation:

Speed, ( 150 + 300)/40.5

= 450/40.5 m/sec

= 450/40.5 × 18/5 km/hr

= 40 km/hr

1157 . A train passes a platform in 40 sec and a woman standing on the platform in 30 sec. If the speed of the train is 108 km/hr, what is the length of the platform?

A. 100m
B. 300m
C. 900m
D. 1020m

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Answer: Option B

Explanation:

Length of train=108×30×(5/18)=900m

Length of train+platform=108×(5/18)×40=1200m

So, Length of platform=1200-900=300m

(ans)

Officer (General) -Ansar VDP Unnayan | BD House Building Finance Corporation 28.09.2018

A. 300 m
B. 120 m
C. 240 m
D. None of these

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Answer: Option C

Explanation:

Length of the train=54×20×(5/18)=300m

So,

Length of the platform=(54×36×5/18)-300=240m

(ans)

1159 . A train passes city X at 8.25 am and city Y at 11.05 am. The distance between city X and Y is 320 miles. What is the average speed in miles per hour of the train?

A. 135
B. 120
C. 270
D. None of these

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Answer: Option B

Explanation:

Here, 8:25 am to 11:05 am = 2 hr 40 min = 160 min = 160/60 hr = 8/3 hr

Speed = distance / time = 320 / (8/3) = 120 mph

1160 . A train passes city X at 9.55 am and city Y at 10.15 am. The distance between city X and Y is 45 miles. What is the average speed in miles per hour of the train?

A. 135
B. 120
C. 270
D. None of these

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Answer: Option A

Explanation:

সময়ের পার্থক্য= ৯.৫৫ টা - ১০.১৫ টা = ২০ মিনিট

= ১/৩ ঘন্টা = t

দূরত্ব,S = ৪৫ মাইল

আমরা জানি,

S= vt

V= s/ t

= 45/(⅓)

= 135 mile/ h . ( Ans. )

1161 . A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

A. 120 meter
B. 150 meter
C. 180 meter
D. 200 meter
E. None of these

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Answer: Option B

Explanation:

60 km = 60000 meter

At 3600 second it goes = 60000 meter

At 9 seconds it goes = ( 60000× 9) /3600 meter = 150 meter

1162 . A train speeds past a pole in 15 seconds and a platform 100m long in 25 seconds. What is the length of the train?

A. 50 meter
B. 100 meter
C. 150 meter
D. 200 meter
E. None of these

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Answer: Option C

Explanation:

1163 . A train starts from city Y at 2 PM and travels towards city X at 75 km/hr. Another train starts from city X at 1 PM and travels towards Y at 60 km/hr. If the distance between these two cities is 330 km then at what time will they meet?

A. 4 :00 PM
B. 5 : 00 PM
C. 5 :30 PM
D. 6 :00 PM

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Answer: Option A

Explanation:

1164 . A train traveled p miles in 40 minutes and completed the remaining 200 miles of the trip in q minutes. What was its average speed, in miles per hour for the entire trip?

A. 60(p+200)/ (40+q)
B. 240/(p+q)
C. 4/(p+q)
D. None

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Answer: Option A

Explanation:

The average speed of the train for the entire trip can be calculated by dividing the total distance traveled by the total time taken. The total distance traveled is p + 200 miles, and the total time taken is 40 + q minutes. To convert minutes to hours, we divide by 60. Therefore, the average speed in miles per hour is:

(40+q)/60p+200

To simplify this expression, we multiply both the numerator and the denominator by 60, and get:

40+q60(p+200)

1165 . A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less for the same journey. Find the speed of the train.

A. 30 km/hr
B. 40 km/hr
C. 50 km/hr
D. 60 km/hr

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Answer: Option B

Explanation:

বাংলাদেশ ব্যাংক অফিসার ০২ -১২-২০২২

A. 200 miles
B. 230 miles
C. 150 miles
D. 300 miles

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Answer: Option B

Explanation:

The train travelled = 50×2.5 + 70×1.5 = 125 + 105 = 230 miles

1167 . A train went 300 km city X to City at an average speed of 10 km/h. At what speed did it travel on the way back if its average speed for the whole trip was 120 km/h?

A. 120 km/h
B. 125 km/h
C. 130/h
D. 150 km/h

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Answer: Option D

Explanation:

100 km/h এ city X থেকে city Y তে যেতে সময় লাগে 300/100 ঘন্টা = 3 ঘন্টা

যাওয়া ও আসার জন্য মোট ভ্রমনের সময় লাগে = 300 × 2 /120 = 5 ঘন্টা

সুতরাং, ফিরতি

ভ্রমনের জন্য সময় থাকে = 5 - 3 = 2 ঘন্টা

তাহলে ফিরতি বেগ হলে = 300/2 km/h = 150km/h

1168 . A train went 300 miles from city X to city Y at an average speed of 100 mph. At what speed did it travel on the way back if its average speed for the whole trip was 120 mph?

A. 120 mph
B. 125 mph
C. 150 mph
D. 130 mph

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Answer: Option C

Explanation:

1169 . A train went 300 miles from city X to city Y at an average speed of 80 mph. At what speed did it travel on the way back if its average speed for the whole trip was 100 mph?

A. 120 mph
B. 125 mph
C. 133.33 mph
D. 137.5 mph

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Answer: Option C

Explanation:

Total time spent = (300 + 300) / 100 = 6 hours

Time spent on departure trip = 300 / 80 = 3.75 hours

Time spent on return trip = 6 - 3.75 = 2.25 hours

Average speed on return trip = 300 / 2.25 = 133.33 miles per hour.

Bangladesh Bank - Assistant Director - 2006

A. 75
B. 81
C. 72
D. 74

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Answer: Option B

Explanation:

1156 . A train of length 150 metres takes 40.5 seconds to cross a tunnel of length 300 metres. What is the speed of the train in km/hr?

1157 . A train passes a platform in 40 sec and a woman standing on the platform in 30 sec. If the speed of the train is 108 km/hr, what is the length of the platform?

1158 . A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the train is 54 km/hr, what is the length of the platform?

1159 . A train passes city X at 8.25 am and city Y at 11.05 am. The distance between city X and Y is 320 miles. What is the average speed in miles per hour of the train?

1160 . A train passes city X at 9.55 am and city Y at 10.15 am. The distance between city X and Y is 45 miles. What is the average speed in miles per hour of the train?

1161 . A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

1162 . A train speeds past a pole in 15 seconds and a platform 100m long in 25 seconds. What is the length of the train?

1163 . A train starts from city Y at 2 PM and travels towards city X at 75 km/hr. Another train starts from city X at 1 PM and travels towards Y at 60 km/hr. If the distance between these two cities is 330 km then at what time will they meet?

1164 . A train traveled p miles in 40 minutes and completed the remaining 200 miles of the trip in q minutes. What was its average speed, in miles per hour for the entire trip?

1165 . A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less for the same journey. Find the speed of the train.

1166 . A train travels at an average speed of 50 miles per hour for 2.5 hour and then travels at an average speed of 70 miles per hour for 1.5 hours. How far did the train travel in the entire 4 hour?

1167 . A train went 300 km city X to City at an average speed of 10 km/h. At what speed did it travel on the way back if its average speed for the whole trip was 120 km/h?

1168 . A train went 300 miles from city X to city Y at an average speed of 100 mph. At what speed did it travel on the way back if its average speed for the whole trip was 120 mph?

1169 . A train went 300 miles from city X to city Y at an average speed of 80 mph. At what speed did it travel on the way back if its average speed for the whole trip was 100 mph?

1170 . A tree increases annually by 1/8th of its hight. By how much will it increase after 2 years, if it stands today 64 cm high?

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