Sum of the digits of two digit number is 9. The number obtained by interchanging the digit is 18 more than twice the original number. The original number is: 

1)  72  
2)  27 
3)  36 
4)  63

The equations representing the given graph is _____.

1)  7x + 2y = 11; y - 2x = 3 
2) 2x + 7y = 11; 5x + (35y/2) = 25 
3) 3x - 7y = 10; 8y - 6x = 4 
4) 3x - 4y = 1; 8y - 6x = 4

The sum of two numbers is 100 and one number is two less than twice the other number. Then the numbers are  

1)  34, 66  
2)  24, 76 
3)  44, 56 
4)  46, 54

If  x + y= 7 and 3x — 2y = 11. Then the value of x will be:  

1) 5 
2) 6 
3) 7
4) 8

Two numbers are in the ratio 3: 4. If 5 is subtracted from each .then the ratio will be 2:3. What is the smallest number?   

1)  15  
2)  18 
3)  20 
4)  24