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Integers — Maths STD 7 — Question

Maharashtra BoardEnglish MediumSTD 7MathsIntegers3 Marks
Question
Simplify the following:
$27-\Big[38-\big\{46-(15-\overline{13-2})\big\}\Big]$
✓

Answer

$27-\Big[38-\big\{46-(15-\overline{13-2})\big\}\Big]$
$=27-\big[38-\{46-(15-11)\}\big]$
$=27-\big[38-(46-4)\big]$
$=27-\big[38-42\big]$
$=127-[-4]$
$=27+4$
$=31$
$\therefore27-\Big[38-\big\{46-(15-\overline{13-2})\big\}\Big]=31$

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