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# Mathematical Operations

1.

12:30 :: 14: ?

Here 12 x 2.5 = 30

In the same way 14 x 2.5 = 35

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2.

If P denotes ‘+’, Q denotes ‘–‘, R denotes ‘×’ and S denotes ‘÷’, then which of the following statement is correct ?

8 × 8 + 8 ÷ 8 – 8

= 8 × 8 + (8/8) – 8

= 64 +1 – 8 = 57.

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3.

If + stands for ‘division’, × stands for ‘addition’, – stands for ‘multiplication’ and ÷ stands for subtraction, then which of the following equations is correct?

36 – 6 + 3 × 5 ÷ 3

→ 36 × 6 ÷ 3 + 5 – 3.

→ 36 × 2 + 5 – 3 = 74.

→ 72 + 5 – 3 = 74.

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4.

In the following problem, '=' stands for '÷' , '+' stands for '­' , 'x' stands for '=', '­' stands for '+' and '÷' stands for 'x'. Find the correct equation.

No answer description available for this question.

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5.

In a certain code language, '-' represents'+', '+' represents 'x', 'x' represents '÷' and '÷'represents '-'. Find out the answer to the following question.

2 - 12 + 10 x 5 ÷ 12 = ?

No answer description available for this question.

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6.

If P denotes ‘multiplied’ by’, T denotes ‘subtracted’ from’, M denotes ‘add to’ and B denotes ‘divided by’, then 28 B 7 P 8 T 6 M 4 =?

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7.

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
25 + 10 ÷ 240 x 16 = ?

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8.

If A means ‘plus’, B means ‘minus’, C means ‘divided by’ and D means ‘multiplied by’, then 18 A 12 C 6 D 2 B 5 = ?

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9.

Which one of the four interchanges in signs and numbers would make the given equation correct? 3 + 5 – 2 = 4

No answer description available for this question.

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10.

If 25 + 5 ÷ 2 = 40 , and 35 + 5 ÷ 2 = 60 , then 45 + 5 ÷ 2 = ?