Question
The school has two types of classes: Math and Science.
The average number of students per Math class is x, and the average number of students per Science class is y. The school has 5 Math classes and 4 Science classes. If the total number of students in all Math classes is 160 more than the total number of students in all Science classes, and the average number of students per class across all classes is 40, how many students are there in each Math and Science class?Solution
Total number of students in math class = 5x Total number of students in science class = 4y According to question- 5x = 4y+160 5x-4y = 160   ….(1) And also, 5x+4y = 9 × 40 5x+4y = 360   ….(2) Adding both these equations we get- 10x = 520 x = 52, putting this value in above equation y = 25 total number of students in math class = 5x =260 total students in science class = 4y = 100
At one of the place in India, if you stand on the seashore and watch the sea, ‘you will find that the sea water recedes from the shore line a few kilo...
'Duns' are longitudinal valleys situated between the ______ and the Shiwaliks.
Another name of Carborundum is
Which state of India has the maximum length of state Highways?
Which Country shares the longest boundary with India?
Study of Science of rocks which form the unit of earth crust is known as ?
What is the longest river in Peninsular India?
Earthquakes occur most frequently at which part of earth?
The World Deepest trench ‘Mariana Trench ’ is found in?
Consider the following statements:
1. Chota Nagpur plateau presents a radial drainage pattern.
2. Karbi-Anglong plateau lies in the west t...
