Let the original price of the jewel = Rs. y
Also, let the profit earned by the third seller = P%
According to the question,
(100 + P)% of 125% of 120% of y = 165% of y
[(100 + P)/100]% × (125/100) × (120/100) × y = 165% × y
100 + P = [(165 × 100 × 100) / (125 × 120)]
100 + P = 110
P = 10%
English
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12 Mins English English50 Questions100 Marks60 Mins English English10 Questions20 Marks12 Mins EnglishFor different sets of datasets X and Y. correlation coefficient between X and Y, that is R and standard deviation of X and Y, that is, S(X) and S(Y) are given in A-D below. Estimate the covariance between X and Y for each dataset and arrange in ascending order.
A. R= 0.5, S(X)= 8, S(Y)= 10
B. R= 4/7, S(X)= 7, S(Y)= 9
C. R= 0.7, S(X)= 12, S(Y)= 5
D. R= 19/42, S(X)= 14, S(Y)= 6
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A.
B.
C.
D.
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