Ques:- A pole seen from a certain distance at an angle of 15 degrees and 100 meters ahead by 30 degrees. What is the height of pole ?
Recent Answer : Added by Admin On 2020-05-17 12:02:03:
tan 30=h/x
tan 15=h/100+x
so h/tan 30=(h/tan 15)-100
=33.33app
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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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Recent Answer : Added by Nishara Pathirana On 2023-04-18 07:32:50:
Assume Q can do the work alone in Q days:
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solving this Q = 10.
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Recent Answer : Added by gkt On 2021-11-09 15:53:15:
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Ques:- The largest natural number by which the product of three consecutive even natural numbers is always divisible by
A. 16
B. 24
C. 48
D. 96
Recent Answer : Added by Shashank Panddey On 2022-09-15 16:36:27:
Let three consecutive even numbers be 2n,2n+2,2n+4
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If n=1,
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So, all the numbers will be divisible by 48 if change n.
tan 30=h/x
tan 15=h/100+x
so h/tan 30=(h/tan 15)-100
=33.33app