The sum of two numbers is 70 and their difference is 16, the numbers are:

1. 43 and 27

2. 43 and -27

3. -43 and 27

4. -43 and -27

If Megha's age is increased by three times her age, the result is 60 years. Find her age.

28 is 12 less than 4 times a number. Find the number.