Ques:- If a boat is moving in upstream with velocity of 14 km/hr and goes downstream with a velocity of 40 km/hr, then what is the speed of the stream ?(a) 13 km/hr(b) 26 km/hr(c) 34 km/hr(d) none of these
Recent Answer : Added by DRS On 2022-08-14 16:31:31:
Speed of Stream = 1/2 (Downstream Speed – Upstream Speed)
=1/2(40-14)
=1/2(26)
=13km/h
method 2:
for down stream case :speed=Boat speed + Stream speed
for up stream case :speed=Boat speed – Stream speed
therefore, Bs + Ss =40
Bs – Ss =14
(-) (-) (-)
———————
2Ss=26
Ss=26/2 = 13Km/h
Stream speed= 13Km/hr
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A. elitist education
B. specialised education
C. distance education
D. general education
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Recent Answer : Added by Alex Ntiamoah On 2022-08-14 16:39:49:
Accounting and Finance
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Ques:- The size of the bucket is N kb. The bucket fills at the rate of 0.1 kb per millisecond. A programmer sends a program to receiver. There it waits for 10 milliseconds / and response will be back to programmer in 20 millisecond. How many much time the program takes to get a response back to programmer, after it is sent? Plz explain..
Recent Answer : Added by 9074743593 On 2021-07-29 16:19:39:
30
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Ques:- Connect all these dots using 4 continuous lines.one clue ucan extend the line after the points also.2.one basket contains apples,second basket contains orangesand third basket contains apples and oranges the labels arewrongly mentioned.pick one fruit from one of these basketand find which basket contain which fruits.
Ques:- 1) In a club there are certain no. of males and females. If 15 females are absent then no. of males will be twice that of females. If 45 males are absent then female strength will be 5 times that of males. Find no. of males actually present.
Recent Answer : Added by Admin On 2020-05-17 12:01:55:
Let the number of males be given the name M.
Let the number of females be given the name F.
If 15 females are absent, then M will be twice that of
present females.
This means that M = 2 * (F – 15)
M = 2 * F – 30.
or 2 * F – M = 30.
Now if in addition to the 15 females being absent, we also
have 45 males being absent,
then this gives the equation,
(F – 15) = 5 * (M – 45)
which simplifies to
F – 15 = 5 * M – 225
5 * M – F = 210
Pulling the equations together, we get
5 * M – F = 210
-M + 2 * F = 30
Multiply the first equation by 2, and keep the second
equation as is.
10 * M – 2 * F = 420
– M + 2 * F = 30
Add the equations.
9 * M = 450
M = 50
Verify answer.
Calculate F
from – M + 2 * F = 30
-50 + 2 * F = 30
2 * F = 30 + 50
F = 40.
If 15 females are absent, then number of males will be twice
that of females.
40 – 15 = 25.
50 = 2 * 25. Confirmed.
If also 45 males were absent, then female strength would be
5 times that of males.
Female strength is 25 due to the 15 females being absent.
50 – 45 = 5.
25 = 5 * 5. Confirmed.
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Ques:- There are some pigeons and hares in a zoo. If heads are counted, there are 200. If legs are counted, there are 580. The number of hares in the zoo is?
Recent Answer : Added by Amelia On 2022-08-24 17:03:31:
X= pigeon
Y= hares
X+Y= 200
2x+4y=580
By solving y= 90
X=110
So Hares= 90
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A. 40
B. 200
C. 640
D. 2560
Recent Answer : Added by Mahendra Sharma On 2022-08-14 16:41:55:
200
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163
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Recent Answer : Added by Lani On 2021-09-28 17:28:16:
x- sum of first 4 values
y – 5th value
x/4 = 45
x=45*4=180
(x+y)/5 = 46
(180+y)/5=46
180+y=230
y=50
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Recent Answer : Added by V Revanth Royal On 2021-08-16 15:51:31:
2hr 30min
Ques:- A man walks from 9.15 to 5.15 from monday to friday and 9.00 to 12.00 on saturday.Each day 0.45 min lunch. How much time he walks in a week
Recent Answer : Added by Admin On 2020-05-17 12:03:14:
39 hrs 15 mins..
note:
he will not be having .45 mins for his lunch on saturday..
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Ques:- If anand is the father of Roopa then Anand is the ——-of Roopa’s father.
Recent Answer : Added by Pinnapureddy praneetha Reddy On 2021-12-15 16:05:43:
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Speed of Stream = 1/2 (Downstream Speed – Upstream Speed)
=1/2(40-14)
=1/2(26)
=13km/h
method 2:
for down stream case :speed=Boat speed + Stream speed
for up stream case :speed=Boat speed – Stream speed
therefore, Bs + Ss =40
Bs – Ss =14
(-) (-) (-)
———————
2Ss=26
Ss=26/2 = 13Km/h
Stream speed= 13Km/hr