Exams

Lover of nature is called nature lover or Green Panther.

Autophile is a person who loves being alone.

Dendrophile is a person who loves trees and forests.

Petrichor is an earthy smell that follows a rainfall.

Here in the above puzzle,

Consider the columns.

Column 1 = Row 1 + Row 2 = Row 3

That is,

44 + 12 = 56

Similarly,

48 + 30 = 78

Hence, 14 + 51 = 65.

Hence, the missing number in the given puzzle = 65.

G-15 is an economic grouping of Third World Nations.

The countries listed in G-15 group are Algeria, Argentina, Brazil, Chile, Egypt, India, Indonesia, Iran, Jamaica, Kenya, Malaysia, Mexico, Nigeria, Peru, Senegal, Sri Lanka, Venezuela, and Zimbabwe.

The G-15 membership has expanded to 18 countries, but the name has remained unchanged. 

• The First World described countries whose views aligned with NATO and capitalism. The United States was considered a member of the First World.

• The Second World referred to countries that supported communism and the Soviet Union. Russia was considered a member of the Second World.

• The Third World referred to countries whose views did not align with NATO and capitalism or the Soviet Union and communism. A Third World country is a developing nation characterized by poverty and a low standard of living for much of its population. Third World countries referenced the nations, mostly in Asia and Africa.

Ratio of times taken by A and B = 100 : 130 = 10 : 13.
Suppose B takes x days to do the work.

Then, 10 : 13 :: 23 : x     =>     x = ( 23 x 13/10 )     =>     x = 299 /10.

A's 1 day's work = 1/23 ;
B's 1 day's work = 10/299 .

(A + B)'s 1 day's work = ( 1/23 + 10/299 ) = 23/299 = 113 .

Therefore, A and B together can complete the work in 13 days. 

W1:A1 W2:A2 ..... WN:AN

  2 : 3                   4 : 5                    5 : 7 

W1W1+A1 = 25 W2W2+A2=49 WNWN+AN = 512

= 72/180

= 80/180

= 75/180  

 =>     5   :   3

Therefore, the ratio is  5: 3