A bakery opened yesterday with its daily supply of 40 dozen rolls. Half of the rolls were sold by noon, and 80% of the remaining rolls were sold between noon and closing time. How many dozen rolls had been sold when the bakery closed yesterday?

Created: 6 years ago | Updated: 4 years ago

Updated: 4 years ago

2 dozen

4 dozen

5 dozen

8 dozen

Bangladesh Commerce Bank Ltd Commerce Bank Ltd - Junior Officer - 19.09.2008 গণিত লাভ-ক্ষতি (Profit and loss)

ব্যাখ্যা

456

Best Ans:

Sold by noon = $\frac{40}{2} = 20 d o z e n r o l l s$
80% of remaining = $20 \times 80 % = 16 d o z e n r o l l s$ sold between noon & closing time
$∴$ After closing $(20 - 16) d o z e n = 4 d o z e n r o l l s a r e u n s o l d .$

6 years ago

0 0

Md Azizur Rahman

Founder of Satt

লাভ-ক্ষতি (Profit and loss)

Edit

A bakery opened yesterday with its daily supply of 40 dozen rolls. Half of the rolls were sold by noon, and 80% of the remaining rolls were sold between noon and closing time. How many dozen rolls had been sold when the bakery closed yesterday?

লাভ-ক্ষতি (Profit and loss)

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