Question : Simplify the following expression:
[$\sqrt{25}$ + 12 ÷ 3 – {20 + (16 of 8 ÷ 16) – (54 ÷ 18 of $\frac{1}{2}$}]

Option 1: –13

Option 2: 12

Option 3: 22

Option 4: 0

Question : Simplify the following expression:
$[\frac{85}{34}×\frac{1}{18}–${${{(\frac{46}{69}÷\frac{27}{135})}}–(\frac{86}{129}×\frac{91}{14})$} of $\frac{112}{36}]$

Option 1: $3 \frac{1}{5}$

Option 2: $3 \frac{3}{4}$

Option 3: $3 \frac{1}{2}$

Option 4: $3 \frac{1}{4}$

Question : Simplify the given expression.
15 – (–5)  × {4 – (7 – 3)}  ÷ [3 × {5 + (–3)  × (–6)}]

Option 1: 21

Option 2: 15

Option 3: 88

Option 4: 125

Question : Simplify the given expression.
$\frac{120 \times 120 \times 120-100 \times 100 \times 100}{120 \times 120+120 \times 100+100 \times 100}$

Option 1: 20

Option 2: 25

Option 3: 10

Option 4: 15

Question : Directions: By interchanging the given two signs which of the following equations will be not correct?
× and –

Option 1: 15 + 5 ÷ 1 – 9 × 4 = 70

Option 2: 5 – 6 × 3 + 16 ÷ 4 = 31

Option 3: 11 + 6 × 3 – 8 ÷ 2 = 5

Option 4: 15 – 4 × 3 + 6 ÷ 1 = 63