A) 17
B) 18
C) 19
D) 20
Correct Answer: B
Solution :
According to question? \[{{x}_{1}}+{{x}_{2}}+{{x}_{3}}+{{x}_{4}}=16\times 4=64\] ... (1) \[\frac{{{x}_{2}}+{{x}_{3}}+{{x}_{4}}}{2}=23\] \[{{x}_{2}}+{{x}_{3}}+{{x}_{4}}=46\] ... (2) On solving eq. (1) and (2) \[{{x}_{1}}=64-46\] \[{{x}_{1}}=18\]You need to login to perform this action.
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