Tanu was asked to multiply a given number by 4/5 mistakes he divided the number by 4/5 his answer was 36 more than the correct answer what was the given number?
Answers
Answered by
1
Answer:
80
Step-by-step explanation:
Say x is the given number
Expected value is 4x/5
however there is a miscalculation due to which x is divided by 4/5.
Obtained value = 5x/4
Given that obtained value- expected value is 36
Thus 1.25x-0.8x = 36
Solving for x we get x = 80
Answered by
1
ANSWER = 80
Step-by-step explanation:
Let the given number be x,
Original answer = 4/5x
Wrong answer = x/1 / 4/5
= x multiplied by 5/4
= 5x/4
So,
5x/4 = 36 + 4x/5
5x/4 - 4x/5 = 36
(25x - 1) / 20 = 36
9x/20 = 36
x = (36 multiplied by 20) / 9
So, x = 80
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