Question

IF A is coded as +, B is coded as -, C is codeed as x and D is coded as ,
then evaluate :
8B1A1C36D5C3
(a)
18.6
(h)
28.6
(c)
29.6
(d)
30.6
​

Answer 1

Solution :

Given ,  [ A is coded as + ]........(I)

             [ B is coded as - ].........(ii)

     

            [ C is coded as x ].........(III)

 

            [ D is coded as ÷  ] .........(IV)

Evaluate : 8B1A1C36D5C3

[ Now , Arrange it in Particular form as per Question Statement i.e arranging mathematical operations on the basis of BODMAS rules ]

Original Number to be Evaluate : 8 - 1 + 1  × 36÷5 × 3

To Solve :  8 - 1 + 1 × 36÷5 × 3

↪ 7+  7.2 × 3

 

↪ 7 + 21.6

↪ 28.6

Therefore, "Option B" is correct".

Answer 2

Question : IF A is coded as +, B is coded as - , C is codeed as ×  and D is coded as ÷ , then evaluate : 8B1A1C36D5C3

(a) 18.6

(b) 28.6

(c) 29.6

(d) 30.6

Answer : b) 28.6

Step by step explanation :

We know that,

A = +

B = -

C = ×

D = ÷

Substituting this in places of A, B, C and D

We get :

8 - 1 + 1 × 36 ÷ 5 × 3

Simplifying this using BODMAS rule ,

➡️ 8 - 1 + 1 × 7.2 × 3

➡️7 + 1 × 21.6

➡️ 7 + 21.6

➡️ 28.6

Hence, Opt. (b) is the answer to your question.

( BODMAS rule : Bracket Of, Division, Multiplication, Addition and Subtraction )

[ It states the order to simplify any expression systematically. ]

Hence , Answer Opt. (b)