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{:(" "circ+circ=10),(" "ci...

`{:(" "circ+circ=10),(" "circ +square+square=10),(circ+square-Delta xx circ= 5 ):}`
then the value of ` Delta` will be

A

`1.5`

B

`2.5`

C

5

D

`7.5`

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The correct Answer is:
A
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