Question

what number must be added to the number 30,41,63,85 so that the resultant numbers are in proportion?
Options:
A. 6
B. 4
C. 5
D. 3

Answer 1

Answer:

3

Step-by-step explanation:

=) (30 + x) / (41 + x ) = (63 + x) / (85 +x)

=) By cross multiplication we get,

=) (30 + x ) (85+x) = (63 + x ) ( 41 + x)

=) 115x + 2550 = 104x + 2583

=) 115x - 104x = 2583 - 2550

=) 11x = 33

=) x = 33/11

=) x = 3

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Answer 2

Answer:

3 is your required answer