One fifth of a no. Is increased by 5 is equal to 4 less than the one f...
The Problem:
The problem states that one-fifth of a number is increased by 5, and the result is equal to 4 less than one-fourth of the same number. We need to find the number.
Step-by-Step Solution:
Step 1: Understand the problem:
Let's assume the number as 'x'.
According to the problem, one-fifth of 'x' increased by 5 is equal to 4 less than one-fourth of 'x'.
Step 2: Translate the problem into an equation:
We can translate the problem statement into the following equation:
1/5 * x + 5 = 1/4 * x - 4
Step 3: Solve the equation:
To solve the equation, we need to isolate the variable 'x' on one side of the equation.
Step 4: Simplify the equation:
Multiplying both sides of the equation by 20 to eliminate the fractions, we get:
4 * (1/5 * x + 5) = 4 * (1/4 * x - 4)
4 * (1/5 * x) + 4 * 5 = 4 * (1/4 * x) - 4 * 4
4/5 * x + 20 = 1/4 * x - 16
Step 5: Combine like terms:
Let's combine the terms with 'x' on one side and the constants on the other side of the equation.
4/5 * x - 1/4 * x = -16 - 20
(4/5 - 1/4) * x = -36
Step 6: Simplify further:
To simplify the equation, we need to find a common denominator for 5 and 4, which is 20.
(16/20 - 5/20) * x = -36
11/20 * x = -36
Step 7: Solve for 'x':
To solve for 'x', we need to isolate it on one side of the equation. We can do this by multiplying both sides of the equation by the reciprocal of 11/20, which is 20/11.
(11/20 * x) * (20/11) = -36 * (20/11)
x = -720/11
Step 8: Simplify the result:
The number is -720/11.
Therefore, the solution to the problem is x = -720/11.
One fifth of a no. Is increased by 5 is equal to 4 less than the one f...
Let the number be x.
ATQ :---
=> 1/5x + 5 = 1/4x - 4
=> x/5 + 5 = x/4 - 4
=> (x + 25)/5 = (x + 16)/4
=> 5 (x+ 16) = 4 (x + 25)
=> 5x + 80 = 4x + 100
=> 5x - 4x = 100 - 80
=> x = 20
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