5004 / 139 - 6

Answer: Option A

Explanation:

$$\begin{aligned} = \frac{7}{4}+\frac{16}{3}+\frac{17}{5} \end{aligned}$$

$$\begin{aligned} = \frac{105+320+204}{60} \end{aligned}$$
$$\begin{aligned} = \frac{629}{60} \end{aligned}$$
$$\begin{aligned} = 10\frac{29}{60} \end{aligned}$$

Answer: Option C

Explanation:

Let the number of buffaloes be x and the number of ducks be y
=> 4x + 2y = 2 (x + y) + 24

=> 2x = 24 => x = 12

Answer: Option B

Explanation:

= (31/10) * (3/10) + (7/5) / 20
= (3.1) * (.3) + (1.4) / 20
= 0.93 + 0.07
= 1

Answer: Option B

Explanation:

As per BODMAS rule first we will solve the terms in the bracket then other.
= 7500 + (25) = 7525

Answer: Option C

Explanation:

$$\begin{aligned} = \frac{1}{2+\frac{1}{2+\frac{1}{\frac{3}{2}}}} \end{aligned}$$
$$\begin{aligned} = \frac{1}{2+\frac{1}{2+\frac{2}{3}}} \end{aligned}$$

$$\begin{aligned} = \frac{1}{2+\frac{1}{\frac{8}{3}}} \end{aligned}$$

$$\begin{aligned} = \frac{1}{2+\frac{3}{8}} \end{aligned}$$

$$\begin{aligned} = \frac{1}{\frac{19}{8}} \end{aligned}$$

$$\begin{aligned} = \frac{8}{19} \end{aligned}$$