Haryana Constable Exam, 01.11.2021 (Morning Shift-IV)

11. If ÷ means x, x means +, + means - and - means x, then what will be the value of 50-10 x 20+5÷2 ?

(1) 490
(2) 500
(3) 520
(4) None

Correct Answer: (4) None

Solution:

= 50-10 x 20+5÷2

= 50 x 10 + 20-5 x 2

= 500 + 20-10 = 510

12. Who were the pioneers of Mesopotamian civilization?

(1) Assyrians
(2) Akkadians
(3) Amorites
(4) Sumerians

Correct Answer: (4) Sumerians

Solution:The earliest people of Mesopotamia to develop a civilization are known as the Sumerians.

Mesopotamia is a place situated in the middle of Euphrates and the Tigris rivers which is now a part of Iraq.

13. L, M, N, O, P, Q and R are seven points on a field. O is 220m to the north of P. L is 180m to the north of M, which is 19m to the west of N. P is 40m to the north of R and 30m to the east of M. Q is 220m to the south of L. How far and in which direction is L from N?

(1) 181 m, South East
(2) 180 m, North East
(3) 181 m, North West
(4) 180 m, South West

Correct Answer: (3) 181 m, North West

Solution:According to question,

From Right angle triangle LMN

LN² = LM² + MN²

LN = √180² + 18 ²

= √32400 + 361

= √32761

= √181² = 181 metre

The direction 'L' from N = North - west

14. Indian agricultural economy is shifting from

(1) Primary to agriculture
(2) Secondary to primary agriculture
(3) Primary to secondary agriculture
(4) Tertiary to secondary agriculture

Correct Answer: (3) Primary to secondary agriculture

Solution:The Indian agricultural economy is shifting from primary to secondary agriculture.

Changing demand due to increase in incomes, globalisation and health consciousness is affecting and going to affect more the production in future.

15. The following question is based on the series

ABCDEFGHIJKLM NOPQRSTUVWXYZ Which letter should be ninth letter to the left of the ninth letter from the right, if the first half of the given alphabet is reversed?

(1) F
(2) D
(3) E
(4) I

Correct Answer: (3) E

Solution:According to question.

9th letter from right = R

9th letter to the left of R = E

16. Abraham Accord was signed between

(1) UAE and Israel
(2) UAE and Pakistan
(3) Pakistan and Israel
(4) Egypt and Israel

Correct Answer: (1) UAE and Israel

Solution:The Abraham Accord between Israel, the United Arab Emirates and Bahrain is mediated by the USA. It is the first ArabIsraeli peace deal in 26 years.

Egypt was the first Arab State to sign a peace deal with Israel in 1979.
Jordan signed a peace pact in 1994.

17. Select the correct mirror image of the given figure when the mirror is placed at line AB.

Correct Answer: (3)

Solution:

18. A house was sold for Rs. y by giving a discount of x%, then the list price was

(1) 100y /1-x
(2) 100y /100-x
(3) 100x /100-y
(4) 100y /1-x /100

Correct Answer: (2) 100y /100-x

Solution:Let list price of house = Rs. k

According to question,

(100-x) % of k = y

=> k(100 -x)/100 = y

=> k = 100y/100 - x

19. The blood vascular system in cockroach is of

(1) both (2) and (3)
(2) closed type
(3) open type
(4) none

Correct Answer: (3) open type

Solution:The cockroaches have an open circulatory system.

The heart of the cockroach is arranged mid-dorsally.
It contains 13 segmented chambers which are of the funnel-shaped. circulatory system and are divided into 3 parts i.e head, abdomen, and the thorax.

20. The conference which established International Monetary Fund

(1) Paris
(2) Sanfrancisco
(3) Philadelphia
(4) Bretton Woods

Correct Answer: (4) Bretton Woods

Solution:International Monetary Fund (IMF), was conceived at a UN conference in Bretton Woods, New Hampshire, United States, in July 1944.

It was founded to secure international monetary cooperation, to stabilize currency exchange rates, and to expand international liquidity (access to hard currencies).