Question

rahil scored 37 percenr in 2 subjects 40 percent in 2 subjects and 42 percent in one subject ehat is his percentage 100 points for a valid ans( total marks is 50​

Answer 1

Photosynthesis is the process in which the plants make their own food and oxygen with water, carbon dioxide and sunlight

Answer 2

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A percentage is more like a fraction. A percentage is denoted by the sign %. Suppose out of 100 students 12 students were absent, then we say 12% of the students were absent. In other words, anything out of hundred becomes a percentage that means a fraction with denominator 100 can be called as a percentage. In this chapter we will learn how to find the percentage of marks. For example,

70100

= can be called as 70 percent. = 70%

20100

= can be called as 20 percent. = 20%

53100

= can be called as 53 percent. = 53%

97100

= can be called as 97 percent. = 97%

Formula to calculate Percentage

It is easier to find the percentage if it is out of a hundred but how to calculate the percentage if it is not out of 100? Suppose there are 60 students in a class and 3 of them were absent. So how to calculate the percentage of students absent?

Percentage = Numberofsubjectofwhichpercentageistobefound(Part)TotalNumber(Base)×100%

Here, we need to find the number of students absent. Part = 3, Base = 60.