Q2. Three fourths of a number is 20 less than the original number. Find the original number.
Answers
Answer:
80
Step-by-step explanation:
Taking the original number as x,
3/4 of x = 3/4 * x = 3x/4
20 less than the original number = x - 20
Thus, the equation that forms is:
3x/4 = x - 20
⇒ 3x = 4 * (x-20)
⇒ 3x = 4x - 80
⇒ x = 80
Hence, the original number is 80. Hope it helps!
Given : Three fourths of a number is 20 less than the original number
To Find : Original Number
Solution:
Let say Original Number = 4N
Three fourths of a number = (3/4) 4N = 3N
20 less than the original number = 4N - 20
Equate both
3N = 4N - 20
=> N = 20
4N = 80
Original Number = 80
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