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If a b = 6 a - 3 b, evaluate (5 3) 20

Question

If $a ⊙ b = 6 \times a - 3 \times b$ , evaluate $(5 ⊙ 3) ⊙ 20$

2

41

66

1

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Camila Discussed

a ⊙ b = 6 \times a - 3 \times b

, evaluate

(5 ⊙ 3) ⊙ 20

9 mins ago

Discuss this question LIVE

9 mins ago

Text solutionVerified

\Rightarrow

a ⊙ b = 6 \times a - 3 \times b

[ Given ]

\Rightarrow

(5 ⊙ 3) ⊙ 20

\Rightarrow

Let

a = 5

and

b = 3

\Rightarrow

(6 \times 5 - 3 \times 3) ⊙ 20

\Rightarrow

(30 - 9) ⊙ 20

\Rightarrow

21 ⊙ 20

\Rightarrow

Let

a = 21

and

b = 20

\Rightarrow

6 \times 21 - 3 \times 20

\Rightarrow

126 - 60

\Rightarrow

66

∴

(5 ⊙ 3) ⊙ 20 = 66

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