Maths-
General
Easy
Question
If 32 men can reap a field in 15 days, in how many days can 20 men reap the same field?
Hint:
Hint:
In a proportional relationship, the variables are related by a constant ratio(k). For example, the equation which can relate the two variables can be written in the form:
y = (constant)
x or y = k
x.
So, for solving these types of questions we need to create a proportional relationship between the variables. These relationships can be direct, inverse etc.
The correct answer is: 24 days
Let the number of days be represented as x and the number of men be represented as y. The number of men will increase if the number of days are decreased so we can conclude that y is in inverse relationship with x. Let’s say the proportional relationship is given as
y =
……..(1)
Step 1 of 2:
It is given that 32 men can reap a field in 15 days i.e. x = 15 and y = 32. Putting the values in equation (1)
32 = 
k = 32
15 = 480
Step 2 of 2:
Now we are asked to find the number of days taken by 20 men. Let the number of days be “d”. So, x = d and y = 20. Putting the values in equation (1)
20 = 
Now, put the value of k = 480
20 = 
d = 
d = 24 days
Final Answer:
Hence, the number of days taken by 20 men to reap the field are 24 days.
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