10+8÷3×6-2=?

Question

10+8÷3×6-2=?
 
A. 24 
B. 34 
C. 22 
D. 12 
E. 11

BrentGMATPrepNow · Accepted Answer

There are 2 (or even 3) acronyms for determining which operation we perform first: PEMDAS, BODMAS, PEDMAS
The important thing to note is that, if we have to choose between Multiplication and Division, we perform those operations from left to right. 
Likewise, if we have to choose between Addition and Subtraction, we perform those operations from left to right. 
So, the acronym PEMDAS should have a hierarchy that looks like this: 
P
E 
MD
AS

Given: 10 + 8 ÷ 3 × 6 - 2. Multiplication and Division are more important that Addition and Subtraction. So, we'll perform those operations first. Since neither operation (Multiplication or Division) is more important than the other, we perform them from left to right. So, in this case, we divide first. 
We get: 10 +  8 ÷ 3  × 6 - 2 = 10 +  8/3  × 6 - 2
Next, we must perform multiplication: 10 +  8/3 × 6  - 2 = 10 +  16  - 2

Since neither operation (Addition or Subtraction) is more important than the other, we perform them from left to right. So, in this case, we add first. 
We get:  10 + 16  - 2 =  26  - 2
= 24

Answer: A

Cheers,
Brent

GMATinsight · Answer

Use of PEDMAS which we often learn in India as BODMAS

10+8÷3×6-2 should be interpreted as 10+{(8÷3)×6}-2 = 10+{8×2}-2 = 26-2 = 24

Answer: Option A

NandishSS · Answer

Applying Basic of Maths BODMAS(Brackets (parts of a calculation inside brackets always come first).
Orders (numbers involving powers or square roots).
Division.
Multiplication.
Addition.
Subtraction)

10+(8÷3)×6-2==>10+8*2-2==>10+16-2==>24

A

MathRevolution · Answer

==> When calculating the numbers, even if there are no brackets, multiplication and division come first. 
You get 10+8÷3×6-2=10+(8/3)6-2=10+16-2=24.

The answer is A.
Answer: A

JeffTargetTestPrep · Answer

We must remember to follow the rules of PEMDAS when calculating the given expression.