Advertisements
Advertisements
Question
Set up equation and solve them to find the unknown number in the following case:
One-fifth of a number minus 4 gives 3.
Advertisements
Solution
Let the number be x.
one-fifth of this number = `x/5`
`x/5 - 4 = 3`
`x/5 = 3 + 4` ...(Transposing - 4 to R.H.S)
`x/5 = 7`
multiplying both sides by 5,
`(x xx 5)/5`
= 7 × 5
x = 35
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?
The length of a rectangle is two times its breadth. Its perimeter is 60 cm.
Perimeter in terms of x is ______.
The length of a rectangle is two times its breadth. Its perimeter is 60 cm.
The equation formed is ______.
The length of a rectangle is two times its breadth. Its perimeter is 60 cm.
The solution of the equation is ______.
In a bag there are 5 and 2 rupee coins. If they are equal in number and their worth is ₹ 70, then
The equation formed 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 solution of the equation 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.
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.
In a family, the consumption of wheat is 4 times that of rice. The total consumption of the two cereals is 80 kg. Find the quantities of rice and wheat consumed in the family.
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.
