### Class XI

If 102y = 25, then 10-y equals:
1. -1/5
2. 1/625
3. 1/50
4. 1/5
The distance light travels in one year is approximately 5,870,000,000,000 miles. The distance light travels in 100 years is:
1. 587 × 108 miles
2. 587 × 1010 miles
3. 587 × 10-10 miles
4. 587 × 1012
Mrs. Rodger got a weekly raise of \$145. If she gets paid every other week, write an integer describing how the raise will affect her paycheck.
1. every week her salary will increase by \$ 145.
2. every week her salary will increase by \$ 155.
3. every week her salary will increase by \$ 140.
4. every week her salary will increase by \$ 150.
If (0.2)x = 2 and log 2 = 0.3010, then the value of x to the nearest tenth is:
1. -10.0
2. -0.5
3. -0.4
4. -0.2
. A man has \$ 10,000 to invest. He invests \$ 4000 at 5 % and \$ 3500 at 4 %. In order to have a yearly income of \$ 500, he must invest the remainder at:
1. 6 %
2. 6.1%
3. 6.2 %
4. 6.4 %
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