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 starts with?

Dennis thought of a number. He adds 0.5 to that number and then multip

1.	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 starts with?
Answer» Let NUMBER be X ADD 0.5 =x + 0.5 multiply by 4 = (x+0.5)4 = 4x+2 subtract 2 = 4x+2-2 =4x divide by 2 = 4x/2 4x/2= 48 4x =2×48 x= 2×48/4 x= 48/2 x=24 is answer

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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 starts with?

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