Question

47 – [ 28 – {16 – (5 – 4 – 1)}]

Answer 1

Answer:

33

Step-by-step explanation:

Answer 2

For this question, we have to use the BODMAS rule

BODMAS is a short form for Brackets, of, Division, Multiplication, Addition and Subtraction. In some regions, it is also known as PEDMAS - Parentheses, Exponents, Division, Multiplication, Addition and Subtraction.

The four commonly used bracket types are: Parentheses ( ), Square brackets [ ], Curly brackets { }, Angle brackets ⟨ ⟩.

We have to solve it in this order-

1. Parentheses ( )
2. Curly brackets { }
3. Box brackets [ ]

Question

47 – [ 28 – {16 – (5 – 4 – 1)}]

Inside the parentheses ( ) there are two negative terms. Most people will subtract 1 from 4, but this is wrong. Since there are two negative terms, namely -4 and -1, we have to add them first. Then -4 + -1 = -5. Then 5 - 5 = 0. The thing you have to keep in mind is -4 is a single term. So subtraction of negative = negative

Then,

47 – [ 28 – {16 – (5 – 4 – 1)}]

⇒ 47 – [ 28 – {16 – (5-5)}]

⇒ 47 – [ 28 – {16 – 0}]

⇒ 47 – [ 28 – 16 ]

⇒ 47 – 12

⇒ 35