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For the following questions answer them individually
In a hostel of 50 girls there are food provisions for 40 days. If 30 more girls join the hostel, the food provisions will last for:
In a hostel of 50 girls there are food provisions for 40 days. If 30 more girls join the hostel, the food provisions will last for:
- a)35 days
- b)30 days
- c)25 days
- d)20 days
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
For the following questions answer them individuallyIn a hostel of 50 ...
Total girls =50+30=80
Let x be the number of days with food provisions for 80.
Number of girls 50 80 Number of days 40 x Since, the number of girls and the number of days with food provisions are in inverse variation, we have:
Number of girls 50 80 Number of days 40 x Since, the number of girls and the number of days with food provisions are in inverse variation, we have:
⇒ 50×40 = 80x
x = 25
Most Upvoted Answer
For the following questions answer them individuallyIn a hostel of 50 ...
Solution:
Given,
Number of girls in the hostel = 50
Food provisions for 50 girls last for 40 days.
If 30 more girls join the hostel, then the total number of girls in the hostel = 50 + 30 = 80
Let us assume that the same amount of food provisions is sufficient for 80 girls for x days.
We can use the formula:
(Number of persons) x (Number of days) x (Food provisions for 1 person for 1 day) = Constant
Using the above formula, we get:
50 x 40 x 1 = 80 x x x 1
2000 = 80x
x = 2000/80
x = 25
Therefore, the food provisions will last for 25 days.
Hence, the correct option is (c) 25 days.
Given,
Number of girls in the hostel = 50
Food provisions for 50 girls last for 40 days.
If 30 more girls join the hostel, then the total number of girls in the hostel = 50 + 30 = 80
Let us assume that the same amount of food provisions is sufficient for 80 girls for x days.
We can use the formula:
(Number of persons) x (Number of days) x (Food provisions for 1 person for 1 day) = Constant
Using the above formula, we get:
50 x 40 x 1 = 80 x x x 1
2000 = 80x
x = 2000/80
x = 25
Therefore, the food provisions will last for 25 days.
Hence, the correct option is (c) 25 days.
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Community Answer
For the following questions answer them individuallyIn a hostel of 50 ...
This problem related to Inverse
proportion .
Two quantities x and y are said to
vary in Inverse proportion, if there
exists a relation of the type
xy = k between them ,k being a
constant.
If y1 ,y2 are the values of y
corresponding to the values x1 and
x2of x respectively, then
x1 y1 = x2y2
According to the problem given,
Number of girls. Days
x1=50 y1 = 40
x2 = 50+30= 80. y2 = ?
x2y2 = x1y1
80 x y2 = 50 x 40
y2 = ( 50 x 40 ) / 80
y2 = 25
If 30 more girls join the hostel , then
provisions last in 25 days.
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For the following questions answer them individuallyIn a hostel of 50 girls there are food provisions for 40 days. If 30 more girls join the hostel, the food provisions will last for:a)35 daysb)30 daysc)25 daysd)20 daysCorrect answer is option 'C'. Can you explain this answer?
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For the following questions answer them individuallyIn a hostel of 50 girls there are food provisions for 40 days. If 30 more girls join the hostel, the food provisions will last for:a)35 daysb)30 daysc)25 daysd)20 daysCorrect answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about For the following questions answer them individuallyIn a hostel of 50 girls there are food provisions for 40 days. If 30 more girls join the hostel, the food provisions will last for:a)35 daysb)30 daysc)25 daysd)20 daysCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the following questions answer them individuallyIn a hostel of 50 girls there are food provisions for 40 days. If 30 more girls join the hostel, the food provisions will last for:a)35 daysb)30 daysc)25 daysd)20 daysCorrect answer is option 'C'. Can you explain this answer?.
For the following questions answer them individuallyIn a hostel of 50 girls there are food provisions for 40 days. If 30 more girls join the hostel, the food provisions will last for:a)35 daysb)30 daysc)25 daysd)20 daysCorrect answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about For the following questions answer them individuallyIn a hostel of 50 girls there are food provisions for 40 days. If 30 more girls join the hostel, the food provisions will last for:a)35 daysb)30 daysc)25 daysd)20 daysCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the following questions answer them individuallyIn a hostel of 50 girls there are food provisions for 40 days. If 30 more girls join the hostel, the food provisions will last for:a)35 daysb)30 daysc)25 daysd)20 daysCorrect answer is option 'C'. Can you explain this answer?.
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