Advertisements
Advertisements
प्रश्न
In a school, the number of girls is 50 more than the number of boys. The total number of students is 1070. Find the number of girls.
Advertisements
उत्तर
Let x be the number of boys in the school.
Then, the number of girls in the school will be x + 50.
According to the question,
x + (x + 50) = 1070
⇒ 2x + 50 = 1070
⇒ 2x = 1070 – 50 ...[Transposing 50 to RHS]
⇒ 2x = 1020
⇒ x = 510 ...[Dividing both sides by 2]
So, the number of boys in the school = 510
∴ Number of girls in the school = 510 + 50 = 560.
APPEARS IN
संबंधित प्रश्न
Set up equation and solve them to find the unknown number in the following case:
Anwar thinks of a number. If he takes away 7 from `5/2` of the number, the result is 23.
The sum of three times a number and 11 is 32. Find the number.
The length of a rectangle is two times its breadth. Its perimeter is 60 cm.
Perimeter in terms of x is ______.
The interest received by Karim is ₹ 30 more than that of Ramesh. If the total interest received by them is ₹ 70, find the interest received by Ramesh.
My younger sister's age today is 3 times, what it will be 3 years from now minus 3 times what her age was 3 years ago. Find her present age.
In a bag, the number of one rupee coins is three times the number of two rupees coins. If the worth of the coins is ₹ 120, find the number of 1 rupee coins.
Anamika thought of a number. She multiplied it by 2, added 5 to the product and obtained 17 as the result. What is the number she had thought of?
One of the two numbers is twice the other. The sum of the numbers is 12. Find the numbers.
Radha got ₹ 17,480 as her monthly salary and over-time. Her salary exceeds the over-time by ₹ 10,000. What is her monthly salary?
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.
