The given histogram relates number of students to their hours of studying.

How many students spend less than $3$ hours in their studying?

90

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80

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50

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Solution

The correct option is A $90$
From the figure,
Number of students studying for $2.5 t o 3$ hours $= 50$
Number of students studying for $2 t o 2.5$ hours $= 30$
Number of students studying for $1.5 t o 2$ hours $= 10$

Total number of students studying for less than $3$ hours $= 50 + 30 + 10 = 90$

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The given histogram relates number of students to their hours of studying. How many students spend less than 3 hours in their studying?

The correct option is A 90From the figure, Number of students studying for 2.5 to 3 hours =50 Number of students studying for 2 to 2.5 hours =30 Number of students studying for 1.5 to 2 hours =10 Total number of students studying for less than 3 hours =50+30+10=90

The given histogram relates number of students to their hours of studying.

How many students spend less than $3$ hours in their studying?

The correct option is A $90$
From the figure,
Number of students studying for $2.5 t o 3$ hours $= 50$
Number of students studying for $2 t o 2.5$ hours $= 30$
Number of students studying for $1.5 t o 2$ hours $= 10$

Total number of students studying for less than $3$ hours $= 50 + 30 + 10 = 90$