Question

In a class test containing 10 questions, 5 marks are awarded for every correct answer and (-2 ) marks are awarded for every incorrect answer and 0 for questions not attempted.

(I) Mohan gets 4 correct and 6 incorrect answers what is his score ?

(II) Reshma gets 5 correct answer and 5 incorrect answers what is her score ?

(III) Heena gets to correct and five incorrect answers out of 7 questions she attempts, what is her score?
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Answer 1

Answer:

MOHAN GOT 8 MARKS

RESHMA GOT 15 MARKS

HEENA GOT 6 MARKS.

Step-by-step explanation:

MOHAN GETS 4 CORRECT AND 6 INCORRECT

SO HIS TOTAL MARKS = 5*4(for correct answers) + {6*(-2)}( for incorrect answers)

THEREFORE 20 + (-12) = 20 - 12 = 8

THEREFORE MOHAN GETS 8 MARKS.

RESHMA GETS 5 CORRECT AND 5 INCORRECT

HET TOTAL SCORE = 5*5( FOR CORRECT ANSWERS) + {5*(-2)} ( FOR INCORRECT ANSWER)

THEREFORE 25+(-10) = 25-10 =15

THEREFORE RESHMA GOR 15 MARKS.

HEENA ATTEMPTS ONLY 7 QUESTIONS OUT OF 10 SO HER 15 MARKS ARE DEDUCTED AUTOMATICALLY. OUT OF 7 SHE GOT 2 CORRECT AND 5 INCORRECT.

TOTAL SCORE OF HEENA = 5*2( FOR CORRECT ANSWERS) + {2*(-2)} (FOR INCORRECT ANSWERS)

THEREFORE 10+(-4) = 10-4 = 6

THEREFORE HEENA GOT 6 MARKS.