Question
Average marks scored by each boy in a class were 60,
whereas that by each girl were 75. If the number of boys is 50% more than the number of girls, then find the average score of each student.Solution
Let the number of girls = 2x.
Thus, the number of boys = 3x. Total marks of boys = 3x × 60 = 180x
Total marks of girls = 2x × 75 = 150x Total marks = 180x + 150x = 330x
Total students = 2x + 3x = 5x Average = 330x ÷ 5x = 66
The germination of seeds while still on the mother plants is known as ____
Tendrils of the tropical orchids we use as flavoring (Vanilla spp.) originate from
Which of the following is considered as an essential step in the exchange of gases during respiration and photosynthesis?
Which is a day-neutral plant?
Milch breeds are mainly rared for milk , An example of a milch breed of cattle is:
On an average, the fat content in Cheddar cheese is:
Bacterial cells are more resistant to osmotic shock than eukaryotic cells due to the-
Given below are two statements:
Statement I: Apomixis is an asexual reproductive process that does not involve nuclear or cellular fusion.Â
...Which insect pest exhibits a behavior of moving in an army, destroying fields, and feeding voraciously on all types of vegetation?
The precursor of auxin is _____