Archives

3 chairs and 2 tables costs Rs. 700 and 5 chairs and 3 tables costs Rs. 1100. What is the cost of 2 chairs and 2 tables?

Solution: Let x be the cost of a chair and y be the cost of a table. 3x + 2y = 700 …(i) 5x + 3y = 1100 …(ii) Multiply (i) by 5... View Article

Fill in the blanks with the most appropriate words. _ earth moves round sun.

(a) An/the (b) The/no article (c) The/the (d) no article/the Solution: ‘The’ is used as a definite article for a thing or person... View Article

Find the cost price, if : S.P. = Rs.200 and loss = Rs.50.

Solution: Selling price = Rs.200 Loss = Rs.50 Cost price = selling price + loss = 200+50 = 250 Rs Hence the cost price is Rs. 250.... View Article

Find the mean of the first twelve natural numbers.

Solution: The first 12 natural numbers are 1, 2, 3, 4, ….12. Mean = sum of observations/total number of observations =... View Article

80 percent of what number is 6?

Solution: Let the number be x. Given 80% of x = 6 (80/100)x = 6 => 600 = 80x => x = 600/80 = 7.5 Hence the required number is 7.5.... View Article

A train of length 150 metres takes 10 seconds to pass over another train 100 metres long coming from opposite direction. If the speed of the first train is 30 kmph, the speed of the second train is

(a) 72 km/h (b) 60 km/h (c) 54 km/h (d) 48 km/h Solution: Speed of the first train = 30 km/h Let speed of the second train be x km/h... View Article

Shikha’s income is 60% more than that of Shalu. By what percent is Shalu’s income less than Shikha’s?

Solution: Let x be the income of Shalu. Shikha’s income is 60% more than that of Shalu Shika’s income = x + (60/100)x = x+ 0.6x... View Article

The factors of x⁴ + y⁴ + x²y² is

(a) (x2 + y2)(x2 + y2- xy) (b) (x2 + y2)(x2 - y2) (c) (x2 + y2 + xy)(x2 + y2 - xy) (d) factorisation is not possible Solution: x4 + y4 +... View Article

19 Dec 2021: The Hindu Analysis

UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 19 Dec 2021. Important news and views to boost... View Article

19 Dec 2021: UPSC Exam Comprehensive News Analysis

CNA 19 Dec 2021:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related C. GS 3 Related SCIENCE AND TECHNOLOGY 1. ‘AI to be a... View Article

18 Dec 2021: PIB Summary & Analysis

TABLE OF CONTENTS 1. ‘Agni P’ Ballistic Missile 2. Ganga Expressway 3. India beyond 75 1. ‘Agni P’ Ballistic Missile Indigenization... View Article

Sansad TV Perspective: Coal “Crisis”: Ground Reality

In the series Sansad TV Perspective, we bring you an analysis of the discussion featured on the insightful programme ‘Perspective’ on Sansad TV,... View Article

18 Dec 2021: The Hindu Analysis

UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 18 Dec 2021. Important news and views to boost... View Article

18 Dec 2021: UPSC Exam Comprehensive News Analysis

CNA 18 Dec 2021:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related SOCIAL ISSUES 1. Federation opposes anti-conversion Bill 2. Raising women’s... View Article

17 Dec 2021: PIB Summary & Analysis

TABLE OF CONTENTS 1. Ramna Kali Temple 2. Misleading Advertisements of Herbal Medicine 3. Kalanamak Rice 4. India - Vietnam Cooperation in the... View Article

UPSC 2021: Weekly GK and Current Affairs Quiz Dec 18 – Dec 24

UPSC 2021: Weekly GK and Current Affairs Quiz Dec 18 - Dec 24 with Multiple Choice Questions and answers for IAS Exam Preparation other... View Article

Krishi Udan Scheme [Govt Schemes for UPSC]

The government of India has launched Krishi Udan Scheme in August 2020. Recently, the scheme has been upgraded to Krishi Udan 2.0. The article... View Article

17 Dec 2021: The Hindu Analysis

UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 17 Dec 2021. Important news and views to boost... View Article

Sansad TV Perspective: Engineering Seats : Problem of Plenty

In the series Sansad TV Perspective, we bring you an analysis of the discussion featured on the insightful programme ‘Perspective’ on Sansad TV,... View Article

Difference between Abstraction and Encapsulation in Java

An Abstraction is a process of showing all the required items and protecting the rest. Encapsulation is the process of binding up data under a... View Article