An MCQ test consists of a certain number of
questions, where each correct answer marks
1 and no-negative marking for others. The
average score of 7 people on the test is 18. If
the difference (non-zero) between the
marks of any two consecutive rankers is the
same, then what could be the approximate
maximum percentage scored by the last
ranker?
a. 15
b. 21
C. 71
d. 81
Answers
Answered by
1
Answer:
A boy of mass 50 kg runs up a staircase of 45 steps in 9 s. If the height of each step is 15 cm, find his power. Take g = 10 m s 2
Answered by
4
Answer:
71
is the answer
is the and
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