Question : Just born baby has the respiratory rate as :

Option 1: 32 times/minute

Option 2: 26 times/minute

Option 3: 18 times/minute

Option 4: 15 times/ minute

Question : Simplify the given expression.
$18 \div 3$ of $2 \times 5+72 \div 18$ of $2 \times 3-4 \div 8 \times 2$

Option 1: $20$

Option 2: $\frac{20}{3}$

Option 3: $\frac{25}{3}$

Option 4: $25$

Question : Directions: By interchanging the given two signs which of the following equations will be correct?
+ and –

Option 1: 55 ÷ 11 – 15 + 3 × 2 = 15

Option 2: 4 × 3 – 6 ÷ 2 + 7 = 7

Option 3: 15 – 7 × 8 + 18 ÷ 3 = 65

Option 4: 529 ÷ 23 + 10 – 5 × 4 = 30

Question : Directions: By interchanging the given two signs and numbers, which of the following equations will be correct?
+ and ×, 1 and 2

Option 1: 8 × 3 – 4 ÷ 2 + 1 = 7

Option 2: 2 × 3 – 8 ÷ 1 + 9 = 18

Option 3: 8 × 3 – 4 ÷ 2 + 1 = 3

Option 4: 2 × 3 – 8 ÷ 1 + 2 = 5

Question : Directions: After interchanging the given two numbers and two signs what will be the values of equations (I) and (II) respectively?
÷ and ×; 1 and 3
I. 6 + 4 – 9 × 3 ÷ 1
II. 4 × 3 – 1 + 8 ÷ 2

Option 1: 26; 17

Option 2: –17; 17

Option 3: 9; 18

Option 4: 11; 15

Question : Direction: If 1 + 4 = 9, 2 + 8 =18, 3 + 6 =15 then 7 + 8 = ?

Option 1: 41

Option 2: 23

Option 3: 30

Option 4: 32