The average of three numbers is 42. If we add one more number, the average drops by 2 and if the first number is replaced by a number which is 3 more than the recently added number the new average becomes 38. The first number is |
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a) |
45 |
b) |
41 |
c) |
39 |
d) |
40 |
The average of three numbers is 42. If we add one more number, the average drops by 2 and if the first number is replaced by a number which is 3 more than the recently added number the new average becomes 38. The first number is |
|||||||
a) |
45 |
b) |
41 |
c) |
39 |
d) |
40 |
A beam of light is sent along the line |
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a) |
|
b) |
|
c) |
|
d) |
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