book Maths Puzzle Numerical Ability

Idk how to solve and check this problem,

The sum of a number and its reciprocal is 10/3. What is the number?

Read Solution (Total 0)

book Other Question
I need to know how to solve (5x-2)(5x+2) and to show my work too. the sum of two numbers is 8. their difference is 12. find the numbers.