Advertisements
Advertisements
Question
If 45 is added to half a number, the result is triple the number. Find the number.
Advertisements
Solution
Let x be the number.
Then, half of the number is `x/2`.
According to the question,
`x/2 + 45 = 3x`
⇒ `(x + 90)/2 = 3x`
⇒ x + 90 = 6x
⇒ `x = 90/5 = 18`
Hence, the number is 18.
APPEARS IN
RELATED QUESTIONS
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?
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 solution of the equation is ______.
If 10 is subtracted from half of a number, the result is 4.
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.
Each of the 2 equal sides of an isosceles triangle is twice as large as the third side. If the perimeter of the triangle is 30 cm, find the length of each side of the triangle.
A man travelled two fifth of his journey by train, one-third by bus, one-fourth by car and the remaining 3 km on foot. What is the length of his total journey?
A girl is 28 years younger than her father. The sum of their ages is 50 years. Find the ages of the girl and her father.
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?
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?
