Estimate the value $15 + 20 + 10$

45

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60

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40

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50

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Solution

The correct option is A $45$
On adding
$15 + 20 + 10$
$= 35 + 10$

We get
$= 45$

Hence, this is the answer.

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Marks	$50 - 55$	$55 - 60$	$60 - 65$	$65 - 70$	$70 - 75$
Students	$50$	$40$	$30$	$20$	$10$

$C I$	$0 - 10$	$10 - 15$	$15 - 20$	$20 - 30$	$30 - 40$	$40 - 60$	$60 - 70$
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46

Marks	0-10	10-20	20-30	30-40	40-50	50-60	60-70	70-80	80-90
No of students	0	2	3	7	13	11	9	2	1

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