A goods train of 24 bogies, each 60 meters long and an engine of 60 meters is running at a speed of 60 kmph. How much time will it take to cross a bridge of 1.5 kms long?
3 minutes
1.5 minutes
2 minutes
3.5 minutes
none of these
An alarm clock gives out siren as follows. one time at 1 o'clock. 2 times at 2 o'clock and so on. Further it gives siren only once at half past an hour. During the span of 24 hours, how many times would it give siren?
324
180
178
360
none of these
The price of cotton has been reduced by 20% and again increased by 20%. If the present price is Rs 960 per quintal, what was the original price per quintal?
Rs 900
Rs 640
Rs 1000
Rs 960
None of these
Rs 500 is shared among 4 men 5 women and 6 children such that the share of a man, a woman and a child are in the ratio 9:8:4. What is the share of a man in Rs?
60
45
48
36
None of these
The least perfect square number which is divisible by 3,4,5,6 and eight is
1200
900
2500
3600
None of these
A man's working hours per day was increased by 20% and his wages per hour was increased by 15%. What is the percentage increase in his daily earnings?
35
38
40
20
None of these
A and B walk around a circular course 35 km in circumferences, starting together from the same point. If they walk at the speeds of 4 & 5 kmph respectively in the same directions, after how many hours will they meet?
15 hrs
21 hrs
35 hrs
42 hrs
None of these
A train moving with a speed of 40 kmph takes 2 hours 6 minutes more to cover a certain distance than a train moving at 96 kmph. What is the distance?
117.6 kms
154 kms
124 kms
144 kms
None of these
Three metal cubes whose edges are 5 cms, 3 cms and 4 cms respectively are melted and formed a single cube. What is the surface area of the new cube?
116 sq cms
126 sq cms
184 sq cms
216 sq cms
None of these
The average age of 6 students in a class is 7 and that of the first 3 is 4. What is the average of the last three students?
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