Answer: 30 couples.
Justification:
You can follow a systematic approach to tackle this kind of problems.
Construct a chain of ratios whose units cancel out to yield to a result with the right units of the answer you are looking for.
In this case you want to know the number of couples that took the ride in 30 minutes.
The input data are:
1 couple / seat
1 seat / minute
Then, by multiplying those two data you get: [1 couple / seat] * [1 seat / minute], which, treating the units appropiately yields to 1 couple / minute.
Next, you realize that when you muliply 1 couple / minute times the number of minutes you get the number of couples that took the ride in that time.
So, the answer is: 1 couple / minute * 30 minute = 30 couples (the minutes cancel out because they appear in the denominator and numerator).
So, when you work with ratios and proportions, the use of units helps you a lot to figure out the way to get the answer.
Answer:
Step-by-step explanation:
Area of garden = length * breadth = 90 * 75 = 6750 Sq . m
= 6750 / 1000 = 0.675 hectare
Area of path = 100 * 85 - 90 * 75
= 8500 - 6750 = 1750 Sq. m
Answer:
Can you put a fraction. It is 1/3
Answer: bro, many 6
Step-by-step explanation:
Answer:
first of all square mean two number or double so if we multiple 15×15=225 and if we multiply 16×16=256 mean the number 240 lies between them what about number 15.5 lets try now 15.5×15.5=240.25 if you want to make sure so just take a square root of this number
so 240 is product of (15.5)² note number after point is negligible
