Find the average of all numbers between 6 and 34 which are divisible by 5

Answer: Option B

Explanation:

As the month begin with sunday, so there will be five sundays in the month. So result will be:
$$\begin{aligned} = (\frac{510 \times 5 + 240 \times 25}{30}) = (\frac{8550}{30}) = 285 \end{aligned}$$

Answer: Option A

Explanation:

Number is (5*27) - (4*25) = 135-100 = 35

Answer: Option B

Explanation:

Average speed will be

$$\begin{aligned} \frac{2xy}{x+y} km/hr = \frac{2(50)(30)}{50+30} km/hr \end{aligned}$$

= 37.5 km/hr

Answer: Option B

Explanation:

$$\begin{aligned} ( \frac {65+67+76+82+85}{5} ) = 75 \end{aligned}$$

Answer: Option B

Explanation:

Average after 11 innings should be 36

So, Required score = (11 * 36) - (10 * 32)
= 396 - 320 = 76