If the difference between 30\% of a number and three fourth of that number is 63, then the number is: - Mathematics MCQ UPTET 2021 Memory Based Paper 1 2026 | ExamTest.live | ExamTest.live

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If the difference between 30% of a number and three fourth of that number is 63, then the number is:

A $140$
B $136$
C $78$
D $103$

Solution & Step-by-step Explanation

Let the number be x .Three-fourth of the number = \frac{3}{4} x = 75% of x = 0.75 x 30% of the number = 0.30 x Given the difference is 63: 0.75 x - 0.30 x = 63 0.45 x = 63 x = \frac{63}{0.45} = \frac{6300}{45} = 140

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If the difference between 30% of a number and three fourth of that number is 63, then the number is:

A

140

B

136

C

78

D

103

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