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
Set up equation and solve them to find the unknown number in the following case:
Munna subtracts thrice the number of notebooks he has from 50, he finds the result to be 8.
Set up equation and solve them to find the unknown number in the following case:
Ibenhal thinks of a number. If she adds 19 to it and divides the sum by 5, she will get 8.
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.
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°).
Solve the following riddle:
I am a number,
Tell my identity!
Take me seven times over
And add a fifty!
To reach a triple century
You still need forty!
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 ______.
13 subtracted from twice of a number gives 3.
The sum of two consecutive multiples of 2 is 18. Find the numbers.
150 has been divided into two parts such that twice the first part is equal to the second part. Find the parts.
The given figure represents a weighing balance. The weights of some objects in the balance are given. Find the weight of each square and the circle.
