Simplify $: 8.7 - [7.6 - (6.5 - (6.5 - (5.4 - 2)))]$

4.5

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4.15

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5.12

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4.25

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Solution

The correct option is A $4.5$
$8.7 - [7.6 - (6.5 - (6.5 - (5.4 - 2)))]$
$∴$ $8.7 - [7.6 - (6.5 - (6.5 - 3.4))]$
$∴$ $8.7 - [7.6 - (6.5 - 3.1)]$
$∴$ $8.7 - [7.6 - 3.4]$
$∴$ $8.7 - 4.2$
$∴$ $4.5$

Suggest Corrections

Class interval	$3.5 - 4.5$	$4.5 - 5.5$	$5.5 - 6.5$	$6.5 - 7.5$	$7.5 - 8.5$
Frequency	$9$	$14$	$22$	$11$	$17$