Advertisements
Advertisements
प्रश्न
In a class of 60 students, the number of girls is one-third the number of boys. Find the number of girls and boys in the class.
Advertisements
उत्तर
As per the given information in the question, the total number of students in the class = 60.
Let x be the number of boys in the class.
Then, the number of girls in the class = `x/3`
According to the question,
`x + x/3 = 60`
⇒ `(3x + x)/3 = 60`
⇒ `(4x)/3 = 60`
⇒ 4x = 60 × 3
⇒ 4x = 180
⇒ x = `180/4` = 45
Hence, the number of boys in the class is 45 and the number of girls in the class is `45/3` i.e.15.
APPEARS IN
संबंधित प्रश्न
The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest marks plus 7. The highest score is 87. What is the lowest score?
In an isosceles triangle, the base angles are equal. The vertex angle is 40°. What are the base angles of the triangle? (Remember, the sum of three angles of a triangle is 180°).
Find a number, such that one-fourth of the number is 3 more than 7.
In a test Abha gets twice the marks as that of Palak. Two times Abha's marks and three times Palak's marks make 280.
The equation formed is ______.
The length of a rectangle is two times its breadth. Its perimeter is 60 cm.
- If the breadth of rectangle is x cm, the length of the rectangle is ______.
- Perimeter in terms of x is ______.
- The equation formed is ______.
- The solution of the equation is ______.
The length of a rectangle is two times its breadth. Its perimeter is 60 cm.
The solution of the equation is ______.
In a Mathematics quiz, 30 prizes consisting of 1st and 2nd prizes only are to be given. 1st and 2nd prizes are worth ₹ 2000 and ₹ 1000, respectively. If the total prize money is ₹ 52,000 then show that:
The total value of prizes in terms of x are ______.
A number when divided by 6 gives the quotient 6. What is the number?
If one side of a square is represented by 18x – 20 and the adjacent side is represented by 42 – 13x, find the length of the side of the square.
Follow the directions and correct the given incorrect equation, written in Roman numerals:
Remove two of these matchsticks to make a valid equation:
