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Question

Answers

(a) 153

(b) 81

(c) 105

(d) 103

Answer

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Hint: In this question, we will first substitute all the alphabet symbols with the mathematical operation they represent and then apply the BODMAS rule to solve it.

__Complete step-by-step answer:__

Here, in given question, English alphabets are used as a symbol in place of mathematical operations as given below:

L represents addition, that is $+$,

M represents subtraction, that is $-$,

N represents multiplication, that is $\times $,

P represents division, that is $\div $.

For example, 2 L 3 will mean 2 + 3.

Also, according to the BODMAS rule, while evaluating any given expression in mathematics, order of preference is: Bracket, Of, Division, Multiplication, Addition, Subtraction.

Now, the given expression is,

14 N 10 L 42 P 2 M 80

Changing alphabets to mathematical operations, we get,

\[14\times 10+42\div 2-80\]

Using BODMAS rule, we will first do division, so dividing 42 by 2, we get,

\[14\times 10+21-80\]

Second operation here according to BODMAS rule is multiplication, so multiplying 14 by 10, we get,

$140+21-80$

third operation here according to BODMAS rule is addition, so adding 140 with 21, we get,

$161-80$

Now subtracting 161 by 80, we get,

\[81\].

Hence, the value of the given expression is 81.

Therefore, the correct answer is option (b).

Note: In this type of questions, do not get confused by the alphabets between the numbers in an expression, it is just a BODMAS rule problem and alphabets are added to check your aptitude knowledge.

Here, in given question, English alphabets are used as a symbol in place of mathematical operations as given below:

L represents addition, that is $+$,

M represents subtraction, that is $-$,

N represents multiplication, that is $\times $,

P represents division, that is $\div $.

For example, 2 L 3 will mean 2 + 3.

Also, according to the BODMAS rule, while evaluating any given expression in mathematics, order of preference is: Bracket, Of, Division, Multiplication, Addition, Subtraction.

Now, the given expression is,

14 N 10 L 42 P 2 M 80

Changing alphabets to mathematical operations, we get,

\[14\times 10+42\div 2-80\]

Using BODMAS rule, we will first do division, so dividing 42 by 2, we get,

\[14\times 10+21-80\]

Second operation here according to BODMAS rule is multiplication, so multiplying 14 by 10, we get,

$140+21-80$

third operation here according to BODMAS rule is addition, so adding 140 with 21, we get,

$161-80$

Now subtracting 161 by 80, we get,

\[81\].

Hence, the value of the given expression is 81.

Therefore, the correct answer is option (b).

Note: In this type of questions, do not get confused by the alphabets between the numbers in an expression, it is just a BODMAS rule problem and alphabets are added to check your aptitude knowledge.