Question

The planet Neptune takes about 165 years to make a complete orbit around the Sun. About how many years does Neptune take to make 18 complete orbits?

1. To complete 18 orbits round around the sun Neptune will go to take 2970 years.

### What is the arithmetic operator?

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,
Summation = addition of two or more numbers or variable
For example = 2 + 8 + 9
Subtraction = Minus of any two or more numbers with each other called subtraction.
For example = 4 – 8
Division = divide any two numbers or variable called division.
For example 4/8
Multiplication = to multiply any two or more numbers or variables called multiplication.
For example 5 × 7.
Given that,
The number of years takes to 1 complete round is 165 years
1 round  ⇔ 165 years
Multiply both sides by 18
18 rounds ⇔ 165 × 18 years
18 rounds ⇔ 2970 years.
Hence “To complete 18 orbits round around the sun Neptune will go to take 2970 years”.