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Meena

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· 1 Months ago

Why not D? (Question:135558.0)

Why not D?

Question:

DIRECTIONS: In the questions given below, some relationship has been expressed through symbols as shown below. Based on the meaning of these symbols and choose the correct answer.

 

ϕ means ‘less than’

Δ means ‘not greater than’

- means ‘equal to’

+ means ‘not equal to’

× means ‘not less than’

= means ‘greater than’

X \(\phi\) Y + Z implies
Options:
A) X – Y = Z
B) X \(\times\) Y – Z
C) X \(\Delta\) Y \(\phi\) Z
D) X + Y = Z
Solution:
Clearly, the meaning of the given symbols

X ϕ Y + Z ⇒ X < Y ≠ Z

Using the proper notations/symbols in option (c), we get

X △ Y ϕ Z

⇒ X< Y< Z.

⇒ X< Y ≠ Z.

Therefore, X ϕ Y + Z = X △ Y < ϕ Z.

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