Separately, we have created many pages on the Arithmetics chapter Time Speed and Distance for clear understanding and performance in competitive exams. Boats and Streams are one of the important sub-topic of Time speed and distance. We have discussed the core concept and shortcuts formula on this topic in Boat and Streams' formula part-1. Now we will solve some aptitude questions of Boats and Streams by using math tricks to save time and score well in our upcoming competitive exam. So, look below some essential aptitude questions followed by the question level of the competitive math section. Especially all the questions are selected from the Boats and Speeds chapter.
Aptitude question1: A swimmer takes 40 minutes to reach a 4 km distance downstream and 60 minutes to 5 km upstream. Then, find the stream rate and the swimmer's speed in the still water.
Easy math solution: The shortcut formula for the stream rate is (D-U)/ 2, where U is the upstream Rate, and the D is the downstream Rate. Look at the image for an easy math solution.
Don't be hopeless to see the Boat and Stream Formula and Solution. You can jump several steps by practicing some questions. We provide all the steps in the solution to get a clear concept. We used the formula to find the stream rate as (D-U)/2. Where D is the downstream speed of the swimmer and U is the upstream Rate.
Solution: The shortcut formula for the stream rate is (D-U)/2. Here (D-U)/2 means half of the difference between downstream and upstream rates. To apply this formula, we must find the upstream and Downstream Rates. Look at below how we quickly solve this aptitude problem.
Easy Answers to problems
Not it easy, friends? Look below for another aptitude question and solution by using math tricks.
A man started swimming from Kalighat to another Ghat at 4 km/h downstream. He had taken 3 hours to reach while the stream rate was 2km/h. If he comeback Kalighat, then how long time will he take?
Easy solution: The question looks like a big problem. But it can be solved without any pen or paper. First, we have to find the total distance to solve this issue. The man takes three hours to reach his destination. And the speed of the man downstream is (4+2) =6. So the man can cover 18km in 3 hours. Now we have to calculate the upstream Rate of the person, which is (4-2)=2km/hour. So the man can return to Kalighat upstream in (18/2)= 9hour.
Time Speed and Distance Math
How you are feeling to know these Boat and Stream Formula? The comment box is open for you, and you can share your thought about this Boat and Stream Formula. As you know, Time Speed and Distance correlate to this Boat and Stream topic, and we have also prepared tutorials for you. You may read these chapters according to your need. We have made this in two sequences. The first one was prepared with the concept and shortcuts formula, and the second one was prepared for some solved questions on, Time Speed and Distance. The links are given below.
Time speed Distance math concept and formula
Time speed and distance Solved maths
Boat and Stream question
Aptitude question1: A swimmer takes 40 minutes to reach a 4 km distance downstream and 60 minutes to 5 km upstream. Then, find the stream rate and the swimmer's speed in the still water.
Easy math solution: The shortcut formula for the stream rate is (D-U)/ 2, where U is the upstream Rate, and the D is the downstream Rate. Look at the image for an easy math solution.
Don't be hopeless to see the Boat and Stream Formula and Solution. You can jump several steps by practicing some questions. We provide all the steps in the solution to get a clear concept. We used the formula to find the stream rate as (D-U)/2. Where D is the downstream speed of the swimmer and U is the upstream Rate.
Question and Solution
►A ship traveled 80 km in 4 hours downstream and came back 8 hours upstream. Now find the speed of the stream.Solution: The shortcut formula for the stream rate is (D-U)/2. Here (D-U)/2 means half of the difference between downstream and upstream rates. To apply this formula, we must find the upstream and Downstream Rates. Look at below how we quickly solve this aptitude problem.
Easy Answers to problems
Not it easy, friends? Look below for another aptitude question and solution by using math tricks.
Boat and Stream Formula and Question 3
A man started swimming from Kalighat to another Ghat at 4 km/h downstream. He had taken 3 hours to reach while the stream rate was 2km/h. If he comeback Kalighat, then how long time will he take?
Easy solution: The question looks like a big problem. But it can be solved without any pen or paper. First, we have to find the total distance to solve this issue. The man takes three hours to reach his destination. And the speed of the man downstream is (4+2) =6. So the man can cover 18km in 3 hours. Now we have to calculate the upstream Rate of the person, which is (4-2)=2km/hour. So the man can return to Kalighat upstream in (18/2)= 9hour.
Time Speed and Distance Math
How you are feeling to know these Boat and Stream Formula? The comment box is open for you, and you can share your thought about this Boat and Stream Formula. As you know, Time Speed and Distance correlate to this Boat and Stream topic, and we have also prepared tutorials for you. You may read these chapters according to your need. We have made this in two sequences. The first one was prepared with the concept and shortcuts formula, and the second one was prepared for some solved questions on, Time Speed and Distance. The links are given below.
Time speed Distance math concept and formula
Time speed and distance Solved maths
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