The pattern is:

So, the missing group of letters is VZEX.

By checking option A:

16 Χ18+2-14÷3=38

After interchanging signs:

16 Χ14-2+18÷3=38

On solving,

224-2+6=38

228=38

So, its not correct.

By checking option B:

16 Χ18+2-14÷3=38

After interchanging signs:

14 -18+2 Χ 16÷3=38

Here 16 is not perfectly divisible by 3, so it will result in decimal.

So, its not correct.

By checking option C:

16 Χ18+2-14÷3=38

After interchanging signs:

16 +14 Χ 2-18÷3=38

On solving,

16+28-6=38

38=38

So, its correct.

As we found the correct answer, so we do not need to check more options.

Hence, option C is the correct answer.

According to the given information: Five teachers P, K, A, R and M are sitting in a row facing towards south direction. So,

Clearly, A is sitting immediate right of R.

Hence, the correct option is A.

Total number of person in the age group of 20 – 50 years of :

A =

B =

Total person = 2000 + 2100 = 4100

= 6 + 2√3 – 8 – 2√3

= – 2

Given, x + y = 3 and x³ + y³ = 7
We know that, (x + y)³ = x³ + y³ + 3xy(x + y)

⇒ 27 = 7 + 9xy

⇒ xy = 20/9

So, 18xy = 18×(20/9) = 40

* “Kharia” is found in Odisha.

* Gadaba, Ghara, Kharia, Khond, Matya, Oraons, Rajuar and Santhals are the major tribes of Odisha.

* Bhutia, Khas and Lepchas are the tribes of Sikkim.

* Bhotias, Buksa, Jannsari, Khas, Raji, Tharu are the tribes found in Uttarakhand.

* Asur, Khond, Hajong, Ho, Parhaiya, Rabha, Santhals and Savar are found in West Bengal.

* Bhils, Damaria, Dhanka, Meenas(Minas), Patelia and Sahariya tribes are found in Rajasthan.

* Only one wetland site is present in Manipur.

* This one site is Loktak Lake.

* Keibul Lamjao National Park is found here.

* Keibul Lamjao National Park is the only floating national park in the world.

* Loktak Day is observed every year on the 15th of October.

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1) Amu Darya also called Amu river and historically known as Oxus river. It is a major river of Central Asia.
2) It is formed by the junction of Vakhsh and Pani rivers on the border between Tajakistan and Afghanistan and flows from there northwestwards into the southern remnants of Aral sea.
3) While Arvand Rud is the ancient name of Tigris river and the ancient name of Syr Darya is Jaxarates.

• The uppermost layer over the earth’s surface is called the crust.


• It is the thinnest of all the layers. It is about 35 km on the continental masses and only 5 km on the ocean floors.


• The main mineral constituents of the continental mass are silica and alumina. It is thus called sial (si-silica and al-alumina). The oceanic crust mainly consists of silica and magnesium; it is therefore called sima (si-silica and ma-magnesium).