Question : Directions: If + means –, × means +, – means ÷, and ÷ means ×, then what will come in place of ? in the given expression?
72 × 19 ÷ 13 + 16 – ? ÷ 15 × 7 = 266
Option 1: 32
Option 2: 16
Option 3: 4
Option 4: 2
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Correct Answer: 4
Solution :
Given:
+ means –, × means +, – means ÷, and ÷ means ×
72 × 19 ÷ 13 + 16 – ? ÷ 15 × 7 = 266
Replace the symbols according to the instructions –
72 + 19 × 13 – 16 ÷ ? × 15 + 7 = 266
72 + 247 – 16 ÷ ? × 15 + 7 = 266
319 + 7 – 16 ÷ ? × 15 = 266
326 – 266 = – 16 ÷ ? × 15
? = (16 × 15) ÷ 60
? = 4
So, 4 is the correct answer. Hence, the third option is correct.
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