Ques:- If a light flashes every 6 seconds, how many times will it flash in ? of an hour?
Recent Answer : Added by Admin On 2022-09-29 15:41:29:
451 times.
Explanation: There are 60 minutes in an hour.
In ¾ of an hour there are (60 * ¾) minutes = 45 minutes.
In ¾ of an hour there are (60 * 45) seconds = 2700 seconds.
Light flashed for every 6 seconds.
In 2700 seconds 2700/6 = 450 times.
The count start after the first flash, the light will
flashes 451 times in ¾ of an hour.
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Recent Answer : Added by 9074743593 On 2021-07-29 16:19:39:
30
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Ques:- Jack & Jill went to the hill….In going to hill (upword Direction)…Jack went to the hill first nd waited for Jill for “x” hours.. Jack’s speed was then twice of Jill.. In the down word direction Jill can go 3km in a hour, while Jack can go 1km in 1 hour.. Jill reach the ground 1st nd waited for Jack for “x” hours.. Total journey they traveled is 6 km.. Find the speed of Jack…
Recent Answer : Added by Admin On 2020-05-17 12:03:21:
previous ans wrong again..!!!!
first find x its 2 hours
total journey 6 hrs 3km up and also down
jill takes one hr to come down and jack takes 3 hrs so x
is 2 hours….
And while going up jack goes at 1.5km/hr and jill goes at
0.75 km hr so to travel 3 km they take 2 hrs and 4 hrs
respectively…!!! x again is 2 hrs…
so jack totally takes 5 hrs to travel 6 km
therfore speed is 6/5 km per hour
thats is 1.2 km per hour is the correct answer
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64, 71, 80, 91, 104, 119, 135, 155
A. 71
B. 80
C. 104
D. 135
Recent Answer : Added by Anjun On 2022-08-24 17:03:38:
135 is wrong because from starting difference between 7 after that 9 after 11 ,13,17 and so on
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B. 3 : 5 : 5
C. 3 : 5 : 8
D. 6 : 10 : 5
Recent Answer : Added by yangqi On 2021-08-28 11:27:09:
D
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400
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Ques:- A committee has 5 men and 6 women. What are the number of ways of selecting a group of eight persons?
Recent Answer : Added by Admin On 2022-09-29 16:58:10:
The number of ways of selecting a group of eight is
5 men and 3 women=5C5×6C3 =20
4 men and 4 women=5C4×6C4 =75
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b
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Recent Answer : Added by Pat On 2023-04-26 17:34:54:
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Day 8: 23 jumps 3ft = 20 slips 2ft = 22
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Recent Answer : Added by Dhanaraj On 2022-08-14 16:46:52:
D
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Recent Answer : Added by Admin On 2020-05-17 12:03:41:
( d ) 6 days
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A. 24
B. 36
C. 48
D. 72
Recent Answer : Added by anonymous On 2022-03-09 16:38:02:
451 times.
Explanation: There are 60 minutes in an hour.
In ¾ of an hour there are (60 * ¾) minutes = 45 minutes.
In ¾ of an hour there are (60 * 45) seconds = 2700 seconds.
Light flashed for every 6 seconds.
In 2700 seconds 2700/6 = 450 times.
The count start after the first flash, the light will
flashes 451 times in ¾ of an hour.