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The number to be added to each of the numbers 7, 16, 43, 79 to make the numbers in proportion is
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- 2
- 3
- 5
- 1
Correct Option: C
From the given options number = 5, because
| = | ||
| 16 + 5 | 79 + 5 |
| ⇒ | = | ||
| 21 | 84 |
[check other options likewise]
Second Method :
Here, a = 7, b=16, c = 43, d= 79
| Required number x = | |
| (a + d) − (b + c) |
| = | |
| (7 + 79) − (16 + 43) |
| = | |
| 86 − 79 |
| = | = 5 | |
| 7 |
