11 Questions
| Total Attempts: 29

Questions and Answers

- 1.Sonam wants to calculate how many more seconds he has while he is awake. Suppose Sonam is 25 years old. He sleeps 8 hours per day. He estimates he will live to be 75 years old. Without using a calculator, estimate how many 'waking seconds' he has. Use your rounding skills to find the answer!
- A.
3,000,000,000 (or 3 x 10^9 seconds)

- B.
2,000,000,000 (or 2 x 10^9 seconds)

- C.
1,000,000,000 (or 1 x 10^9 seconds)

- D.
4,000,000,000 (or 4 x 10^9 seconds)

- 2.A new hydropower plant in Lingmethang is estimated to generate 1,270 Megawatts. Approximately many 60 watt bulbs can the plant light up?
- A.
20 light bulbs

- B.
20,000 light bulbs

- C.
20,000,000 light bulbs

- D.
20,000,000,000 light bulbs

- 3.46,795 runners finished the 2011 New York marathon. The 1981 marathon had 13,203 finishers. What was the percentage increase during this time period?
- A.
Approximately 350%

- B.
Approximately 500%

- C.
Approximately 400%

- D.
Approximately 250%

- 4.
**What is inflation?**- A.
The % relative change in the price level over the preceding twelve months

- B.
The increase in average prices in the retail sector

- C.
The rise in labor costs over the last year

- D.
The percentage expansion of the economy over the last year

- 5.In the The New Yorker on March 29, 2010 you could read on page 45 that "Apple has just 2.2 per cent of the world cell-phone market, but that means it sold twenty-five million iPhones last year." How large was the 2009 world cell-phone market? (That is, how many people bought a cell-phone in 2009?)
- A.
Approximately 1.1 million

- B.
Approximately 110 million

- C.
Approximately 1.1 billion

- D.
Approximately 11 billion

- 6.Your employment contract calls for a 5% annual raise. If the inflation rate is 11.3%, what is your resulting “raise”? (You can use a calculator)
- A.
A 6.3% reduction (from the original value)

- B.
A 5.6% reduction (from the original value)

- C.
A 6.3% raise (from the original value)

- D.
A 5.6% raise (from the original value)

- 7.Last week, the store sold 25 DVDs at $14.99 each; 13 DVDs at $12.99 each and 19 DVDs at $7.99 each. Find the weighted average of sales per DVD.
- A.
$12.20/DVD

- B.
$695.43/DVD

- C.
$24.40/DVD

- D.
$15/DVD

- 8.Asam took 7 maths tests and got scores of 68, 71, 71, 84, 53, 62 and 67. What was Asam's mode score?
- A.
68

- B.
84

- C.
71

- D.
67

- 9.
**What type of graph is this? What is the mode value?**- A.
Bar graph; 25

- B.
Histogram; 25

- C.
Bell Curve; 25

- D.
Histogram; 100

- 10.What is the median of these numbers: 2.4, 2.8, 2.3, 2.9, 2.9?
- A.
2.3

- B.
2.9

- C.
2.8

- D.
There is no median

- 11.
**Please describe your experience of the course. Discuss your overall satisfaction and what you would like to learn more of in the future (related to math, numeracy, and quantitative reasoning)**