Question

Brians comic book collection increased 120 to 150 comic books by what percentage did his collection increased

Answer 1

Answer:

25%

Step-by-step explanation:

The number is increased from 120 to 150. The numeric increase in the number is 150 - 120 = 30. In terms of the percentage of the original number, it is 25%. The required increases in the number from 120 to 150 is 25% of the original number. So,

Step 1. Subtract the original amount (120) from the new amount (150)

Step 2. Divide the original number (120) by the answer found in Step 1 (30)

Step 3. Divide 100 by the answer found in Step 2 (4)

Step 4. Slap a percentage on the answer found in step 3 (25)

Your answer: 25%

And if you have to change the percentage to a decimal divide that 25 by 100. Similarly, if you are trying to turn a decimal into a percentage, multiply the decimal number by 100. Example:

.25 x 100 = 25%