The Venn diagram is as follows - 

Hence, option C is the correct answer.

16 + 95 × 19 – 4 ÷ 3

From the option C, interchange ÷ and ×, we get

16 + 95 ÷ 19 – 4 × 3

= 16 + 5 - 12

=9

Hence, option C is the correct answer.

• Article 239 to 241 in Part VIII of the constitution envisages the provisions related to the union territories. At present, there are 8 union territories including the newly formed union territories of Ladakh, and Jammu and Kashmir.

• Every union territory is administered by the President acting through an administrator appointed by him.

• The President can specify the designation of an administrator; it may be Lieutenant Governor or Chief Commissioner or Administrator.

* Chilka Lake is located between Mahanadi and Godawari.

* It is a brakish water lagoon at the mouth of Daya River in Orissa.

* Chilka lake was the first UNESCO Natural world heritage site of India.

* It is also listed as a wetland site under Ramsar Convention.

Let total number of houses be 100.

∴ Houses with two or more persons = 20% of 100 = 20

Houses having only one person = 80

Houses having only one female and no male = 50% of 80 = 40

Now, required % = = 40%

Hence, option B is the correct answer.

Time taken by Prem to cover 5 km = 5/4 = 1 hr 15 min

 Prem stops for 20 min. after every 5 km,

Distance covered by Prem in 1 hr 35 min. = 5 km

Distance covered by Prem in 4 hr (1 hr 35 min + 1 hr 35 min + 50 min) = 5 + 5 + 4×5/6 = 13.33 km

Similarly,

 Prakash stops for 15 min. after every hour,

Distance covered by Prem in 1 hr 15 min. = 6 km

Distance covered by Prem in 4 hr (1 hr 15 min + 1 hr 15 min + 1 hr 15 min + 15 min) = 6 + 6 + 6 + 6×1/4 = 19.5 km

 Distance between them in 4 hrs. = 13.33 + 19.5 = 32.83 km

• Billowing = rise up as if in waves. It is often used for smoke.

• Burning = combustion.

• Tossing = throw with a light motion.

• Rocking = shake or sway.

• Billowing out = to spread over a large area, or (especially of things made of cloth) to become filled with air and appear to be larger.

• Thus, 'billowing' is the most appropriate word.

Hence, option C is the correct answer.