These are the different type of questions asked from this topic.
Type 1: Find the time when the angle between the two hands are given.
Type 2: Find the angle between the 2 hands when the time is given.
Type 3: Find the time, when clocks gaining/losing time.
Type 4: Find the time in the mirror image.
Formula : H x 30 degree - M x 5.5 degree.
H - Hour
M - Minute
Eg: The angle between the minute hand and the hour hand of a clock when the time is 4:20 is:
= 4 x 30 - 20 x 5.5
= 120 - 110
=10 degrees.
Formula : if time is more than 11.00 then subtract it from 23.60 else subtract it from 11.60.
Eg: What will be mirror image of Clock Time 3: 40
= 11:60 - 3:40
= 8:20
Shortcut tricks on boats and streams are one of the most important topics in exams. These are the formulas and examples on Boats and Streams (Cyclist and the wind or Swimmer and stream) questions. These examples will help you to better understand shortcut tricks on boats and streams questions.
There are multiple types of questions asked from these topics. The speed of the boat in still water and the speed of stream will give in questions, You have to find the time taken by boat to go upstream and downstream. .
The speed of the boat in up and down stream will give in question, you need to find the average speed of the boat.
The speed of boat to go up or down the stream will give in question, you need to find speed of boat in still water and speed of stream.
The time taken by boat to reach a place in up and downstream will given in question, you need to find the distance to the place.
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The quickest way to calculate percentages is to multiply numbers first and handle two decimal places later.
For example, 20% of 70 is 20 x 70 = 1400, so the answer is 14. .
70% of 20 is also 14.
To calculate the percentage of 72 or 29, then round up and down to the nearest multiple (70 and 30 respectively) to get a quick approx result.
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Code -“BHAJI SABJI FOR MAASAAB”.
B : Babur.
H : Humayun.
A : Akbar.
JI : Jahangir.
S : Shah jahan.
A : Aurangazeb.
B : Bahadur shah.
JI : Jahandar shah.
For : Farrukhsiyar.
M : Muhammad Shah.
A : Ahmad Shah.
A : Alamgir II.
SA : Shah Alam II.
A : Akbar II.
B : Bahadur Shah Zafar.
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