Suppose you have 40 blue socks and 40 brown socks in a drawer. How many socks must you take from the drawer without looking to be sure of getting a pair of the same color?

There's a 50% chance of getting a pair of the same colour

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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