| Direction: What will come in place of the question mark (?) in the following number series. | |||||
| 3.9 | 5.1 | 7.5 | 11.1 | ? | 21.9 |
A) 16.1
B) 15.4
C) 16.3
D) 15.9
E) 14.8
Correct Answer: D
Solution :
The pattern is : \[3.9+1\times 1.2=3.9+1.2=5.1\] \[5.1+2\times \text{ }1.2=5.1+2.4=7.5\] \[7.5+3\times 1.2=7.5+3.6=11.1\] \[11.1+4\times 1.2=\text{ }11.1\text{ }+4.8=\] \[15.9+5\times 1.2=\text{ }15.9+6=21.9\]
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