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Question

If a2ends in 5,then a3 end in 25.

State whether the statement is true (T) or false (F).


A
True
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B
False
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Solution

The correct option is B False

Verify the given statement

Given that if a2ends in 5,then a3 end in 25.

Case 1: Let a be 35

a2=352=1225

a3=353=42875

Here, a2ends in5, anda3 do not end in 25

Case 2: Let a be 5

a2=52=25

a3=53=125

Here, a2ends in5, anda3 end in 25

Considering the above two cases we can say that the given statement is not always true

Hence, the given statement is false.


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