Question

If $\sqcap$ stands for +
$⊏$ stands for -
$⊐$ stands for $\times$
$\bigsqcup$ stands for $÷$
$||$ sands for $=$
$\leftarrow$ stands for <
$\to$ stands for >
Which one of the following expression is true?

• A. $(10\sqcap 2)⊐\left(2||2\right)\leftarrow (10\bigsqcup 3)$
• B. $(20⊏8)\bigsqcup (4⊏)||(4\sqcap 1)$
• C. $(12⊏4)⊐(5⊐)\to$ (10 $\bigsqcup$ 20)
• D. $(10\sqcap 2)⊐(2\bigsqcup 2)\to (10\bigsqcup 2)$
• E. $(19\bigsqcup 3)⊏(3\sqcap 1)\sqcap \left(5||20\right)$

Answer 1

Answer: (D)

$(10\sqcap 2)⊐(2\bigsqcup 2)\to (10\bigsqcup 2)$

Substituting as given in question,

option A

$(10+2)\times 2=2<10÷3$ False

option B

$(20-8)÷(4-)=(4+1)$ False because $12÷-4\ne 5$

option C

$(12-4)\times (5\times )>$ (10 $÷$ 20) False because $8\times 5\ne 10÷20$

option D

$(10+2)\times (2÷2)>(10÷2)$ True because $12\times 1>10÷5$

option E

$(19÷3)-(3+1)+5=20$ False

so option D