A sum of $200,000 from a certain estate was divided among a spouse and three children. How much of the estate did the youngest child receive ？（）
(1)The spouse received  of the sum from the estate, and tile oldest child received of the remainder.
(2)Each of the two younger children received $12.500 more than the oldest child and $62,500 less than the spouse.

单项选择题A toy store regularly sells all stock at a discount of 20 percent to 40 percent. If an additional 25 percent were deducted from the discount price during a special sale, what would be the lowest possible price of a toy costing $16 before any discount ？（）

A．$5.60
B．$7.20
C．$8.80
D．$9.60
E．$15.20

单项选择题The inflation index for the year 1989 relative to the year 1970 was 3.56, indicating that, on the average, for each dollar spent in 1970 for goods, $3.56 had to be spent for the same goods in 1989. If the price of a Model K mixer increased precisely according to the inflation index, what was the price of the mixer in 1970 ？（） (1)The price of the Model K mixer was $102.40 more in 1989 than in 1970. (2)The price of the Model K mixer was $142.40 in 1989.

A．条件(1)充分，但条件(2)不充分．
B．条件(2)充分，但条件(1)不充分．
C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
D．条件(1)充分，条件(2)也充分．
E．条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．