In a certain code language, ‘+’ means ×’, ‘–’ means ‘+’, ×’ means ‘÷’ and ‘÷’ means ‘–’. Based on the above facts, solve the following question. 642 × 6 – 4 ÷ 25 + 4 = ? www.mathselab.com

In a certain code language, ‘+’ means ×’, ‘–’ means ‘+’, ×’ means ‘÷’ and ‘÷’ means ‘–’. Based on the above facts, solve the following question.
642 × 6 – 4 ÷ 25 + 4 = ?

Question


In a certain code language, ‘+’ means ×’, ‘–’ means ‘+’, ×’ means ‘÷’ and ‘÷’ means ‘–’. Based on the above facts, solve the following question.

642 × 6 – 4 ÷ 25 + 4 = ?


A. 18
B. 11
C. 64
D. 7


Answer: B. 11


Solution:

The given equation is : 642 × 6 – 4 ÷ 25 + 4

After changing the mathematical operators the equation will become:
= 642 ÷ 6 + 4 – 25 × 4
= 107 + 4 – 25 × 4
= 107 + 4 – 100
= 111 – 100
= 11

As the obtained number is “11”.

Hence, the correct answer is “11“.




Related To:

If × means ÷, – means ×, ÷ means + and + means- then (3 – 15 ÷ 19) × 8 + 6 = ?

If × stands for ‘addition’, ÷ stands for ‘subtraction’, + stands for ‘multiplication’ and – stands for ‘division’, then 20 × 8 ÷ 8 – 4 + 2 = ?

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