Related Questions

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?
A 2 dozen
B 4 dozen
C 5 dozen
D 8 dozen
Mr. Mamun bought 73 rolls of film. He can take 24 pictures with each roll of film. What is the total number of pictures he can take with 73 rolls of film ?
A 1,642
B 1,652
C 1,742
D 1,752
The cost of four rolls, six samuchas and three loaves of bread is Tk. 91. The cost of two rolls, three samuchas and one loaf of bread is Tk. 39. What is the cost of one loaf of bread?
A Tk. 10.50
B Tk. 11.00
C Tk. 12.00
D Tk. 13.00
A case of 12 rolls of paper towels sells for $ 9. The cost of one roll sold individually is $ 1. what is the percent of savings per per roll for the 12-roll package over the cost of 12 rolls purchased individually?
A 25%
B 90%
C 15%
D 11%
A case of 12 rolls of paper towels sells for $ 9. The cost of one roll sold individually is $ 1. what is the percent of savings per roll for the 12 roll package over the cost of 12 rolls purchased individually?
A 9%
B 33.33%
C 25%
D 15%
In a four high rolling mill, the diameter of backing up rolls is ________ the diameter of working rolls.
A Equal to
B Smaller than
C Larger than
D None of these
Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction?
A Nonrepeatable read
B Phantom read
C Dirty read
D Consistent read
Which of the following occurs when a transaction rereads data and finds new rows that were inserted by a command transaction since the prior read?
A Nonrepeatable read
B Phantom read
C Dirty read
D Consistent read
A phantom read occurs when a transaction rereads data it has previously read and finds modifications or deletions caused by a committed transaction.
A True
B False
A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?
A The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction
B The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction
C The bottom and middle roll rotate in the same direction
D Any one of the above

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