Related Questions

A certain dentist specializes in implanting gold and silver teeth in his patients mouths .He charges $ 650 for a gold tooth an $ 325. for a silver tooth. If his told fees for implanting gold and silver teeth last week were $ 15, 925 in total and he implanted five more gold teeth that silver teeth, how many teeth in total did he implant over the week?
A 33
B 32
C 31
D 34
Percentage of silver in German silver is
A 5
B 10
C 20
D 0
German silver is an alloy of
A Silver and some impurities
B Refined silver
C Nickel, Copper and zinc
D Nickel and copper
German silver is an alloy of copper, nickel and
A Zinc
B Silver
C Tin
D Lead
German silver used for making utensils is an alloy of
A Copper, silver, nickel
B Copper, zinc, nickel
C Copper, zinc, aluminium
D Copper, nickel, aluminium
German silver, an alloy, does not contain the metal
A Nickel
B Zinc
C Copper
D Silver
In a rare coin collection, all coins are either pure gold or pure silver , and there is initially one gold coin for every three silver coins . With the addition of 10 more gold coins to the collection, the ratio of gold coins to silver coins is 1 to 2. Based on this information , how many total coins are there now in this collection (after the acquisition)?
A 40
B 50
C 70
D 90
In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French of German, 9 are taking both courses. How many students are not enrolled in either course ?
A 6
B 15
C 24
D 33
In a class of 78 students 14 are taking French , 22 are taking German . Of the students taking French or German , 9 are taking both courses. How many students are not enrolled in either course?
A 6
B 15
C 24
D 33
In a class of 78 students, 41 are taking, Fresh and 22 are taking German. Of the students taking French or German, 9 are taking both courses. how many students are not enrolled in either course?
A 6
B 15
C 24
D 69

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