What is the sum of the mean proportional between 5 and 9.8 and the third proportional to 7 and 14?
- A35
- B32
- C34
- D33
Solution & Step-by-step Explanation
1) Mean Proportional between a and b is given by
a×b
:
Mean Proportional=
5×9.8
=
49
=7
Third Proportional to c and d is given by
c
d
2
:
Third Proportional=
7
14×14
=2×14=28
Sum of the mean proportional and third proportional:
Sum=7+28=35
a×b
:
Mean Proportional=
5×9.8
=
49
=7
Third Proportional to c and d is given by
c
d
2
:
Third Proportional=
7
14×14
=2×14=28
Sum of the mean proportional and third proportional:
Sum=7+28=35