Given the table below:

Guitar chords( $c$ ) 7 13 19 25

Drum beats( $d$ ) 14 26 38 50

The relation between $c$ and $d$ is

d = c + 10

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d = 2c

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c = 2d

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Solution

The correct option is B d = 2c
From the table given:

Guitar chords( $c$ ) 7 13 19 25

Drum beats( $d$ ) 14 26 38 50

we can see,
$7 \times 2 = 14$
$13 \times 2 = 26$
$19 \times 2 = 38$
$25 \times 2 = 50$
so, $d = 2 c$ .

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