There are two numbers such that the sum of twice the first and thrice the second is 39, while the sum of thrice the first and twice the second is 36. The larger of the two is |
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(a) |
6 |
(b) |
8 |
(c) |
9 |
(d) |
12 |
There are two numbers such that the sum of twice the first and thrice the second is 39, while the sum of thrice the first and twice the second is 36. The larger of the two is |
|
|||||||
(a) |
6 |
(b) |
8 |
(c) |
9 |
(d) |
12 |
Let the numbers be and
Then,
On solving we get
Largest number = 9.
The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc and of a circular ring of the same radius about a tangential axis in the plane of the ring is |
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a) |
|
b) |
|
c) |
|
d) |
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