Find three consecutive positive odd integers, the sum of whose squares is 155.

Find three consecutive positive even integers such that three times the square of least integer plus seven times the square of middle integer minus five time the square of the third integer is 328.

The sum of the digits of a two digit number is 9 and the product of the digits is 20. If the unit digit is greater than the tens digit. The number is

1. 45

2. 54

3. none of these

Two whole numbers are in ratio 3:2. If the sum of their square is 52, the numbers are:

1. 9 and 6

2. 6 and 4

3. 9 and 4

4. none of these