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
Set up equation and solve them to find the unknown number in the following case:
One-fifth of a number minus 4 gives 3.
People of Sundargram planted trees in the village garden. Some of the trees were fruit trees. The number of non-fruit trees was two more than three times the number of fruit trees. What was the number of fruit trees planted if the number of non-fruit trees planted was 77?
Sum of two numbers is 81. One is twice the other.
The equation formed is ______.
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 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 ______.
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 equation formed is ______.
After 25 years, Rama will be 5 times as old as he is now. Find his present age.
The perimeter of a rectangle is 40 m. The length of the rectangle is 4 m less than 5 times its breadth. Find the length of the rectangle.
In a certain examination, a total of 3768 students secured first division in the years 2006 and 2007. The number of first division in 2007 exceeded those in 2006 by 34. How many students got first division in 2006?
Follow the directions and correct the given incorrect equation, written in Roman numerals:
Move one matchstick to make the equation valid. Find two different solutions.
