单项选择题

In a history Class that consisted of 30students，the number of seniors was 3more than twice the number of juniors，and
of the students were neither juniors nor seniors．
（）

A、if the quantity in Column A is greater;
B、if the quantity in Column B is greater;
C、if the two quantities are equal;
D、 if the relationship cannot be determined from the information given.

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单项选择题

Ms．Rogers bought an electric range on the installment plan．The cash price of the range was$4.00．The amount she paid was$120 down and 12 monthly payments of$28each．（）

A、if the quantity in Column A is greater;
B、if the quantity in Column B is greater;
C、if the two quantities are equal;
D、 if the relationship cannot be determined from the information given.

单项选择题

If two trains are 120 miles apart and are traveling toward each other at a constant rate of 30 mph and 40 mph，respectively，how far apart will they be exactly 1 hour before they meet？（）

A. 10 miles
B. 30 miles
C. 40 miles
D. 50 miles
E. 70 miles

In a history Class that consisted of 30students，the number of seniors was 3more than twice the number of juniors，and of the students were neither juniors nor seniors． （）

In a history Class that consisted of 30students，the number of seniors was 3more than twice the number of juniors，and
of the students were neither juniors nor seniors．
（）