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If X all the perfect squares less than 40 Y all... - JAMB Mathematics 2007 Question

If X = {all the perfect squares less than 40}

Y = {all the odd numbers fro, 1 to 15}. Find X ∩ Y.

A
{3, 9}
B
{9}
C
{9, 25}
D
{1, 9}
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Correct Option: D

All the perfect squares < 40

X = {1, 4, 9, 16, 25, 36}

All the odd numbers from 1 to 15

Y = {1, 3, 5, 7, 9, 11, 13, 15}

X ∩ Y = {1, 9}

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