#include <iostream>


using namespace std;

double mx[15][1005]= {0}, mn[15][1005];

int main() {
    int t;
    for (int i = 0; i < 15; ++i) {
        for (int j = 0; j < 1005; ++j) {
            mn[i][j] = 1000000000.0;
        }
    }

    for (int j = 0; j <= 100; ++j) {
        if(j >= 60 && j <= 69){
            mx[1][j] = 2.0;
            mn[1][j] = 2.0;
        }
        if(j >= 70 && j <= 74){
            mx[1][j] = 2.5;
            mn[1][j] = 2.5;
        }
        if(j >= 75 && j <= 79){
            mx[1][j] = 3.0;
            mn[1][j] = 3.0;
        }
        if(j >= 80 && j <= 84){
            mx[1][j] = 3.5;
            mn[1][j] = 3.5;
        }
        if(j >= 85 && j <= 100){
            mx[1][j] = 4.0;
            mn[1][j] = 4.0;
        }
    }
    for (int i = 2; i <= 10; ++i) {
        for (int j = (i-1)*60; j <= (i-1)*100; ++j) {
            for (int k = 60; k <= 100; ++k) {

                if(k >= 60 && k <= 69){
                    mn[i][j+k] = min(mn[i][k+j], mn[i-1][j]+2.0);
                    mx[i][j+k] = max(mx[i][k+j], mx[i-1][j]+2.0);
                }
                if(k >= 70 && k <= 74){
                    mn[i][j+k] = min(mn[i][k+j], mn[i-1][j]+2.5);
                    mx[i][j+k] = max(mx[i][k+j], mx[i-1][j]+2.5);
                }
                if(k >= 75 && k <= 79){
                    mn[i][j+k] = min(mn[i][k+j], mn[i-1][j]+3.0);
                    mx[i][j+k] = max(mx[i][k+j], mx[i-1][j]+3.0);
                }
                if(k >= 80 && k <= 84){
                    mn[i][j+k] = min(mn[i][k+j], mn[i-1][j]+3.5);
                    mx[i][j+k] = max(mx[i][k+j], mx[i-1][j]+3.5);
                }
                if(k >= 85 && k <= 100){
                    mn[i][j+k] = min(mn[i][k+j], mn[i-1][j]+4.0);
                    mx[i][j+k] = max(mx[i][k+j], mx[i-1][j]+4.0);
                }
            }
        }
    }

    cin >> t;
    for (int i = 0; i < t; ++i) {
        int n, k;
        cin >> n >> k;
        cout << mn[k][n * k] / k << ' ' << mx[k][n * k] / k << endl;
    }
        /* cout << endl << endl;
    for (int i = 1; i <= 10; ++i) {
        for (int j = 1; j <= 1000; ++j) {
            cout<< mx[i][j] << ' ';
        }
        cout << endl;
    }
*/
    return 0;
}