GATE EC||GENERAL APTITUDE||PYQS(2000-2025)

The current population of a city is 11,02,500. If it has been increasing at the rate of 5% per annum, what was its population 2 years ago?

Hari (H). Gita (G). Irfan (I) and Saira (S) are siblings (i.e. brothers and sisters). All were born on I st January. The age difference between any two successive siblings (that is born one after another) is less than 3 years. Given the following facts:

1. Hari’s age + Gita’s age > Irfan's age + Saira’s age.

2. The age difference between Gita and Saira is 1 year.

However, Gita is not the oldest and Saira is not the youngest.

3. There are no twins.

In what order were they born (oldest first)?

[GATE 2010 | 2 marks | MCQ]

25 persons are in a room. 15 of them play hockey, 17 of them play football and 10 of them play both hockey and football. Then the number of persons playing neither hockey nor football is

[GATE 2010 | 1 marks | MCQ]

5 skilled workers can build a wall in 20 days; 8 semiskilled workers can build a wall in 25 days;10 unskilled workers can build a wall in 30 days. If a team has 2 skilled, 6 semiskilled and 5 unskilled workers. how long will it take to build the wall?

[GATE || 2010 || MCQ-2 marks]

Given digits 2, 2, 3, 3, 3, 4, 4, 4, 4 how many distinct 4-digit numbers greater than 3000 can be formed?

[ GATE CS || 2010 MCQ|| 2-mark ]

There are two candidates P and Q in an election. During the campaign 40% of the voters promised to vote for P, and rest for Q. However, on the day of election 15% of the voters went back on their promise to vote for P and instead voted for Q. 25% of the voters went back on their promise to vote for Q and instead voted for P. Suppose, P lost by 2 votes. then what was the total number of voters?

[GATE 2011 | 1 mark | MCQ]

The fuel consumed by a motorcycle during a journey while travelling at various speeds is indicated in the graph below [GATE 2011 | 2 marks | MCQ]

The distance covered during four laps of the journey are listed in the table below.

From the given data, we can conclude that the fuel consumed per kilometer was least during the lap

[2011 || MCQ || 2 MARK]

Three friends, R, S and T shared toffee from a bowl, R took 1/3rd of the toffees but returned 4 toffees to the bowl. S took 1/4th of what was left but returned three toffees to the bowl. T took half of the remainder but returned two back into the bowl. If the bowl had 17 toffees left, how many toffees were originally there in the bowl?

[GATE 2011 | 2 marks | MCQ]

Given that f(y) = |y|/y , and q is any non-zero real number, the value of |f(q) – f(–q) | is

[GATE 2011 | 2 marks | MCQ]

The sum of n terms of the series 4 + 44 + 444 + .... is

[GATE 2011 | 2 marks | MCQ]