Superb madam. Very important tricks for solving any type of problem under boats and streams topic. Very handy tricks.Thanks for Excellent efforts made . For trick no 5 ,I suggest still further simplified version of your trick as D=(square of B minus square of S)/ 2 B multiply by time if total time is given And D= (square of B minus square of S)/ 2 S multiply by time,if difference in time of upward and downward journey is given. This is BSP sarma a retired Bank employee from Hyderabad
Speed of a boat in still water to speed of boat in upstream is 7:5. If the boat can travel 360 km in downstream in 5 hours, then find the time taken by the boat to cover 28 km in still water.
The answer would be 1.4 hrs Explanation: Here they have gave boat speed ratio and upstream ratio By using this we can find stream speed Fomula for upstream is boat-stream speed by using this formula we can find the stream speed from the ratio then using boat and stream speed we can calculate the downstream The speed of the downstream is 72km/hr Downstream ratio is 19x then x=18.9 approx 19 28÷19 =1.4 approximately
Workout 1
X = 8 + 12 / 2 = 10
Y = 8 - 12 / 2 = 2
Workout 2
X = 1 + 4
--. ---------
6. 3
X = 10.
Workout 3
X : Y
2 : 1
2---24
1---12
Stream speed (y) = 12.
Workout 4
35× 15
------------ × 7
50
49× 3 × 5 / 10 = 73.5
Workout 5
16 × 8
-------- × 8
8
16 × 8 =128
Superb madam. Very important tricks for solving any type of problem under boats and streams topic.
Very handy tricks.Thanks for
Excellent efforts made .
For trick no 5 ,I suggest still further simplified version of your trick as
D=(square of B minus square of S)/ 2 B multiply by time if total time is given
And
D= (square of B minus square of S)/ 2 S multiply by time,if difference in time of upward and downward journey is given.
This is BSP sarma a retired Bank employee from
Hyderabad
Thank you so much sir 😊🙏 Tricks provided by you is really superb.. I'll suggest this trick to aspirants in some other video 🙏👍
2).. 1 st 10 kmph
2 nd 2 kmph
Useful......sema clarity
WORK OUT SUM2(10)
Thank you so much mam boat and stream full vedio padhudu endha short cut pathappam very easy a irundhadhu mam thank you so much mam
Very nice mam thanks for your effort
Speed of a boat in still water to speed of boat in upstream is 7:5. If the boat can travel 360 km in downstream in 5
hours, then find the time taken by the boat to cover 28 km in still water.
The answer would be 1.4 hrs
Explanation:
Here they have gave boat speed ratio and upstream ratio
By using this we can find stream speed
Fomula for upstream is boat-stream speed by using this formula we can find the stream speed from the ratio then using boat and stream speed we can calculate the downstream
The speed of the downstream is 72km/hr
Downstream ratio is 19x then x=18.9 approx 19
28÷19 =1.4 approximately
Workout sum3(ans=8)
Work out ans 10km and 2km
Work out sum 1(B=10,s=2)
Super explanation madam
Workaut 2:10
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Workout sum1) x=10, y= 2
2) B = 10
3)S= 12
4)Distance = 73.5
5)Distance = 128
Thank u mam😊😊
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