Enter the unknown value that makes this statement true: 20% of ? is 40. ​

20% of 200= 40

Hope this helps

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d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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