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If a = 7, then value of a2

-3a is

a) 16 b)28 c) 32 d) 50​

By Vivian

If a = 7, then value of a2

-3a is

a) 16 b)28 c) 32 d) 50​

About the author
Vivian

There are two urns containing 5 red and 6 white balls and 3 red and 7 white
balls respectively. If two balls are drawn from t

magic triangle
1,3,5,7,9,11,13,15,17
Every 4 numbers should be added to 30 do not repeat

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