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Simplification Test 7
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© examsnet.com
Question : 39
Total: 40
If 45 – [28 – {37 – (15 – ?) }] = 58, then which of the following should replace the sign of interrogation (?)?
18
17
13
19
Validate
Solution:
∵ 45 – [28 – {37 – (15 – ?)}] = 58
⇒ 45 – [28 – {37 – 15 + ?}] = 58
⇒ 45 – [28 – {22 + ?}] = 58
⇒ 45 – [28 – 22 – ?} = 58
⇒ 45 – 28 + 22 + ? = 58
⇒ 39 + ? = 58
⇒ ? = 58 – 39 = 19
Therefore, the interrogation sign should be replaced by 19.
© examsnet.com
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