Our intelligent observation says that the required year cannot be 1993, 1994, 1995. Why? Because see the following conclusions:
% passed to appear = Passed / Appeared x 100
% of passed to appear is least when Passed / Appeared is the least or, Appeared / Passed is the most.
Now, we do the further calculations mentally. See the following conclusions:
For 1990: 7894 / 2513 ? Quotient = 3 and Remainder ? 300
For 1991: 8562 / 2933 ? Q = 3 and R ? 400
For 1992: 8139 / 2468 ? Q = 3 and R ? 800
Similarly, for 1993; 1994, 1995, Q is 2.
So, 1992 gives the highest value.
Total number of girls enrolled in Painting = 250 + 225 + 15 + 175 + 300 + = 1100
Annual mean profit of the store (rupees in ten thousands)
= (6.5 + 11.5 + 7.5 + 4.5 + 9.5 + 11.5 + 10.0 + 8.5)/8 = 69.5/8 =8.7 (approx.)
According to the bar graph, two successive weeks, i.e. 7 July - 14 July shows maximum decline in the number of persons of killed in road accidents.
From above graph ,
It is clear that the maximum amount was spent on Food , which is 23 % .
Required percentage = (25 + 120) x 100/536 = 100? 27
Here, miscellaneous charges for 4% = 6000
Then advertisement charges for 18% = 6000 x 18/4 = Rs. 27000
Hence, required advertisement charges = Rs. 27000
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