book Maths Puzzle Numerical Ability

I am having problems setting up this problem. The sum of the digits in a two digit number is 8. When the digits are reversed, the new number is 8 less than the original number. What is the original number?

Read Solution (Total 0)

book Other Question

How much of a 10% saline solution should be mixed with a 20% saline solution to obtain 1000 mililiters of a 12% saline solution? Please explain each step simply. A conical pile of sand 6ft high has a base of 27 sq. ft. How many loads of sand are there in the pile(1load=1 cu. yard)