Question

Please help
a. Start with: 60

Rule: Increase by 20%

60 , 72, ?, ?, ?

Answer 1

60, 72, 86.4, 103.68, 124.42

Explanation:

How do I add 20% to a number?

Divide the original number by 100 to get 1% of it.

Multiply 1% by your desired percentage, in this case 20.

Add the product of the previous step to your original number.

Congratulate yourself on adding 20% to your number!

Answer 2

• 60, 72, 86.4, 103.68, 124.416, ...

Explanation:

Given sequence:

• 60, 72, ...

The rule is adding 20%

Adding 20% is converted to common ratio:

• x + 20% =
• 120% of x =
• 1.2x

The sequence is the GP with common ratio of 1.2:

• 60, 72, 72*1.2= 86.4 , 72*1.2² = 103.68 , 72*1.2³ = 124.416