alleryಒಂದು ಪರೀಕ್ಷೆಯು ಪ್ರತಿ ಸರಿಯಾದ ಉತ್ತರಕ್ಕೆ +5 ಮತ್ತು ಪ್ರತಿ ತಪ್ಪಾದ ಉತ್ತರಕ್ಕೆ −2 ನೀಡುತ್ತದೆ; 18 ಉತ್ತರಗಳ ಅಂಕ 55. ಸರಿಯಾದ ಎಣಿಕೆ?
A13
B15
C14
D12
Answer & Solution
Correct answer: A. 13
c ಉತ್ತರಗಳು ಸರಿಯಾಗಿದ್ದರೆ, 5c - 2(18 - c) = 55 7c = 91 ಮತ್ತು c = 13 ನೀಡುತ್ತದೆ.
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