Questions in: Logical reasoning

Right Answer:
Weigh 3 apples against 3 apples. If they balance, the lighter apple is among the remaining 3. If they don't balance, take the lighter group of 3 and weigh 1 apple against 1 apple. If they balance, the lighter apple is the one not weighed. If they don't balance, the lighter side has the lighter apple.

Right Answer:
```cpp
#include <iostream>
#include <vector>

class ChessBoard {
public:
ChessBoard() {
board.resize(8, std::vector<char>(8, '.')); // Initialize an 8x8 board with '.'
}

void display() {
for (const auto& row : board) {
for (const auto& cell : row) {
std::cout << cell << ' ';
}
std::cout << std::endl;
}
}

void placePiece(char piece, int row, int col) {
if (row >= 0 && row < 8 && col >= 0 && col < 8) {
board[row][col] = piece;
}
}

private:
std::vector<std::vector<char>> board; // 2D vector to represent the chess board
};

int main() {
ChessBoard chessBoard;
chessBoard.placePiece('K', 0, 4

Right Answer:
The conclusion is flawed because it does not account for factors such as the number of Volvo cars on the road, the driving conditions, or the demographics of Volvo drivers. Fewer deaths in Volvos could be due to these factors rather than the car's inherent safety.

Right Answer:
Red

Right Answer:
The letter "e".

Right Answer:
Make the first cut vertically through the center, the second cut horizontally through the center, and the third cut diagonally across the cake, intersecting the first two cuts.

Right Answer:
You will need 10 briefcases.

Right Answer:
To determine the percentage of babies born that year who are autistic, we need the total number of babies born that year. Without that information, we cannot calculate the percentage.

Right Answer:
Approximately 5,000 to 10,000 liters of petrol.

Right Answer:
There are approximately 150,000 gas stations in the US.

Right Answer:
There are approximately 150,000 gas stations in the US.

Right Answer:
Approximately 1,000 airplanes take off from JFK airport each day.

Right Answer:
It depends on the size of the gas tank and the rate at which Starbucks serves coffee, but generally, it would take a very long time, likely several hours or more.

Right Answer:
Approximately 300 million golf balls are sold in the U.S. in one year.

Right Answer:
There are approximately 150,000 gas stations in the US.

Right Answer:
The exact number of fire trucks sold every year in India is not publicly available, but estimates suggest it ranges from 1,000 to 2,000 units.

Right Answer:
A Boeing 747 typically weighs between 735,000 to 987,000 pounds (approximately 333,000 to 447,000 kilograms) depending on the model and configuration.

Right Answer:
As of 2023, there are approximately 80,000 fuel filling stations (retail petrol pumps) in India.

Right Answer:
Approximately 700,000 to 800,000 tractors are sold in India in one year.

Right Answer:
As of 2023, there are approximately 30 million cars in India.