Question

Dennis thought of a number. He adds 0.5 to that number and then multiplies the new result by 4. He then subtracts 2 and divides the number by 2. His final answer is 48. What number did Dennis start with

Answer 1

here you go ☆☆

let no. = x

▪(4(x+0.5)-2)/2=48

▪$\frac{4x + 2 - 2}{2} = 48$

▪4x/2=48
▪2x=48
▪x=24

so original no. is 24

hope it helps you.........