Question
The combined average production for four years of
companies A and C is what percentage (rounded off to 2 decimal places) more/less than the combined average production for four years of companies B and D? The bar graph below shows the production of coffee (in lakh tons) by four companies A, B, C and D over a period of four years from 2010 to 2013. Study the graph and answer the question that follows.Solution
From the chart: A total = 60+90+140+220 = 510
C total = 50+190+180+250 = 670
A+C total = 510+670 = 1180 → Average = 1180/4 = 295
B total = 70+100+150+210 = 530
D total = 120+170+200+260 = 750
B+D total = 530+750 = 1280 → Average = 1280/4 = 320
Percentage difference = ((295 - 320) / 320) × 100 = -7.81%
For 3x² − 10x − 8 = 0, find (1/α + 1/β).
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between x and y.
I. 3x<...
I. 2x2 - 9 x + 9 = 0Â
II. 2y2 - 7 y + 3 = 0
I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
I. 3x2 - 16x - 12 = 0
II. 2y2 + 11y + 9 = 0
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between 'p' and 'q' and choose...
For what values of k does the equation x² – (k+1)x + k = 0 have two distinct real roots, both greater than 1?
l. x2 - 16x + 64 = 0
II. y2Â = 64
I. 66x² - 49x + 9 = 0
II. 46y² - 37y - 30 = 0
I. 3p² - 17p + 22 = 0
II. 5q² - 21q + 22 = 0
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