05 August Thursday

CSIR NET/SET/K-TET Preparation

ഡോ. വി രാമലിംഗം അയ്യർUpdated: Monday Dec 24, 2018

Tips for UGC NET aspirants
Type 3
Formative Evaluation
19). A buys n copies of a book at 20% discount. B gets the same
book at 30% discount. What is the minimum value of n for which B
can buy one extra copy of the book, spending the same amount as
A? A) 7 B). 8 C). 6 D). This problem cannot be solved
unless the marked price of the book is known. (AnsA)
{ Let the price on n copies of book be Rs. x .
After getting discount of 20% , then A pays 80x/100 or Rs(4/ 5) x
for n copies of books. While B after getting discount of 30%, he
pays 70x/10 or Rs.( 7 /10) x for n copies of books.
Total money A spent=(4/5)xn
Cost of book for B=(7/10)x,
Number of copies B will be getting for the amount A
If B gets an extra book (8n/7)-n=1. ie n=7}
20). A bird flies along the three sides of a field in the shape of an
equilateral triangle at speeds of 2, 4, 8 km/hr, respectively. The
average speed of the bird is A) 24/7km/hr B) 14/3 km/hr C) 22/7km/hr D) 4 km/hr
(AnsA) {The bird flies along the three sides of a field in the shape of
an equilateral triangle.Let the side be a.
Average speed=Total distance/total time
=(3a) /( a/2+a/3+a/8)=3a/(7a/8)=24/7km/hr}
21). The average staff salary of a company is Rs 8000/-. A new
guard and a new manager are recruited with salaries of Rs5000/- and
Rs 20000/-, respectively. What is the current staff strength if the
new average salary is Rs 4000/- more than that of the guard?
A) 7 B) 9 C) 10 D) 11 (AnsA)
{Let the number of staff be n, total salary=8000n
Total number of staff at present=n+2.
Present average salary=5000+4000=Rs 9000/
Present total salary =9000(n+2) =25000+ 8000n,solving n=7}
22). A 100 m long fence is to be made by fixing a wire mesh on
steel poles. Each pole has a 1 m ?vertical portion and a 1 m portion
tilted at 45 to the vertical. What will be the area of wire mesh
required? A)200 m2 B) 241.4 m2 C) 400 m2 D) 170.7 m2
( Ans A){The area of the fence lying on tilted portion
100* 1 =100 m2
The area of the fence lying on untilted portion 100* 1 =100 m2
Hence total area of fence 100 +100= 200m2 }
23). In a group of students, 30% play only cricket, 20% play only
football and 10% play only basketball. 20% of the students play
both football and cricket, 15% play both basketball and cricket, 10%
play both football and basketball. 15 students play no games, while
5% of the students play all three games. What is the total number of
A). 300 B). 250 C). 350 D). 400 (Ans A-Use set theory)
24). Which of the following countries is the Partner Country at the
38th India International Trade Fair (IITF-2018)?
[A] Iran [B] Afghanistan C] Nepal (D) China (AnsB)
25)Which article of the Constitution provides free legal assistance to
the poor and weaker sections of the society?
[A] Article 39A [B] Article 38A [C] Article 37A [D] Article 36A
( Ans A)
26) Which news agency has recently launched the world’s first AI news anchor?
[A] Yonhap [B] Kyodo News [C] Xinhua [D] Lankapuvath
( AnsC) {China’s state news agency Xinhua has recently launched the world’s first Artificial Intelligence (AI) news anchor at the ongoing 5th World Internet Conference in Wuzhen}
27). On which date, the National Cancer Awareness Day (NCAD), was observed recently in India?
[A] November7 [B] Nov 9 [C] Nov 10 [D] Nov3 (AnsA)
28) Which state government has recently rolled out the technology- driven & citizen-friendly ‘Mo Bus’ service?
[A] Andhra Pradesh [B] Karnataka [C] Odisha [D] Kerala
(AnsC) {In Bhubaneswar, the Odisha government has recently rolled out the technology-driven and citizen-friendly ‘Mo bus’ service featuring free wi-fi, CCTV surveillance, public information display system and on board announcements in the city.}
29)Which of the following is the largest source of water pollution in major rivers of India ?(A) Untreated sewage (B) Agriculture run-off
(C) Unregulated small scale industries (D) Religious practices (AnsA){Repeated question,July2018,July2016,June2014, U.G.C.- NET }
30) If ‘BEBOBD’ in code language means ‘Canada’ then the code ‘MJABSC’ will mean
(A) Mumbai (B) Madras (C) Moscow (D) Brazil (AnsD)

ദേശാഭിമാനി വാർത്തകൾ ഇപ്പോള്‍ വാട്സാപ്പിലും ടെലഗ്രാമിലും ലഭ്യമാണ്‌.

വാട്സാപ്പ് ചാനൽ സബ്സ്ക്രൈബ് ചെയ്യുന്നതിന് ക്ലിക് ചെയ്യു..
ടെലഗ്രാം ചാനൽ സബ്സ്ക്രൈബ് ചെയ്യുന്നതിന് ക്ലിക് ചെയ്യു..

പ്രധാന വാർത്തകൾ