Question

In a math conference, two rooms are used for discussion.
In one room there are 40 people and in the other, 35. At
tea-time each is to be given 2 biscuits. How many biscuits
are needed?
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Answer 1

Explanation:

Number of people in 1st room=40

Number of people in 2nd room=35

Number of biscuits to be given to each=2

Number of biscuits required to the people in first room=40×2=80

Number of biscuits required to the people in second room=35×2=70

Therefore total biscuits required=80+70=150

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Answer 2

Answer:

150

Explanation:

Sum of people in the rooms = 35+40=75

Biscuits to be given=2

So,75×2=150