
(Practice) a. To convert inches (in) to feet (ft), the number of inches should be multiplied by which of the following conversion factors?
i. 12 in/1 ft ii. 1 ft/12 in
b. To convert feet (ft) to meters (m), the number of feet should be multiplied by which of the following conversion factors?
i. 1 m/3.28 ft ii. 3.28 ft/1 m
c. To convert sq.yd to sq.ft, the number of sq.yd should be multiplied by which of the following conversion factors?
i. 1 sq.yd/9 sq.ft ii. 9 sq.ft/1 sq.yd
d. To convert meters (m) to kilometers (km), the number of meters should be multiplied by which of the following conversion factors?
i. 1000 m/1 km ii. 1 km/1000 m
e. To convert sq.in to sq.ft, the number of sq.in should be multiplied by which of the following conversion factors?
i. 144 sq.in/1 sq.ft ii. 1 sq.ft/144 sq.in
f. To convert minutes (min) to seconds (sec), the number of minutes should be multiplied by which of the following conversion factors?
i. 60 sec/1 min ii. 1 min/60 sec
g. To convert seconds (sec) to minutes (min), the number of seconds should be multiplied by which of the following conversion factors?
i. 60 sec/1 min ii. 1 min/60 sec
(a)

To determine the correct option to be multiplied with the number of inches, to convert inches into feet.
Option ii) 1ft/12 in correct.
Explanation of Solution
Explanation
Normally,
Checking both the given option by multiplying it with 1 inch, and if we get the above given expression then the generated result is true.
i)
This option is false.
ii)
This option is true.
Conclusion
Hence, the option ii) is correct.
(b)

To determine the correct option to be multiplied with the number of feet, to convert feet into meters.
The option i) 1m/3.28 ftis correct.
Explanation of Solution
Explanation
Normally,
Checking both the given option by multiplying it with 1 feet, and if we get the above given expression then the generated result is true.
i)
This option is true.
ii)
This option is false.
Conclusion
Hence, the option i) is correct.
(c)

To determine the correct option to be multiplied with the number of sq. yd, to convert sq. yd into sq. ft.
The option ii)
Explanation of Solution
Explanation
Normally,
Checking both the given option by multiplying it with 1 sq. yd, and if we get the above given expression then the generated result is true.
i)
This option is false.
ii)
This option is true.
Conclusion
Hence, the option ii) is true.
(d)

To determine the correct option to be multiplied with the number of meters, to convert metres(m) into kilometer(km).
The option ii)
Explanation of Solution
Explanation
Normally,
Checking both the given option by multiplying it with 1 m, and if we get the above given expression then the generated result is true.
i)
This option is false.
ii)
This option is true.
Conclusion
Hence, the option ii) is true.
(e)

To determine the correct option to be multiplied with the number of sq. in, to convert sq. ft into sq. ft.
The option ii)
Explanation of Solution
Explanation
Normally,
Checking both the given option by multiplying it with 1 sq. in, and if we get the above given expression then the generated result is true.
i)
This option is false.
ii)
This option is true.
Conclusion
Hence, the option ii) is true.
(f)

To determine the correct option to be multiplied with the number of minutes, to convert minutes(min) into seconds(sec).
The option i)
Explanation of Solution
Explanation
Normally,
Checking both the given option by multiplying it with 1 min, and if we get the above given expression then the generated result is true.
i)
This option is true.
ii)
This option is false.
Conclusion
Hence, the option i) is true.
(g)

To determine the correct option to be multiplied with the number of seconds, to convert seconds(sec) into minutes(min).
The option ii)
correct.
Explanation of Solution
Explanation
Normally,
Checking both the given option by multiplying it with 1 sec, and if we get the above given expression then the generated result is
true.
i)
This option is false.
ii)
This option is true.
Conclusion
Hence, the option ii) is true.
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Chapter 1 Solutions
C++ for Engineers and Scientists
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