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The following line graph shows number of three books sold in five cities.
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Number of Book A sold in Pune is what percent of the number of Book C sold in Mumbai?
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Number of Book A sold in Pune = 450
Number of Book C sold in Mumbai = 500
Required percentage = 450/500 * 100 = 90%
Find the respective ratio of number of Book B sold in Mumbai and number of Book A sold in Delhi.
Number of Book B sold in Mumbai = 420
Number of Book A sold in Delhi = 360
Required ratio = 420: 360 = 7: 6
Find the total number of all books sold in Chennai.
Number of Book A sold in Chennai = 420
Number of Book B sold in Chennai = 540
Number of Book C sold in Chennai = 440
Total number of all books sold in Chennai = 420 + 540 + 440 = 1400
Find the difference between number of Book B sold in Delhi and number of Book C sold in Pune.
Number of Book B sold in Delhi = 460
Number of Book C sold in Pune = 480
Required difference = 480 - 460 = 20
Number of Book C sold in Bangalore is what percent more than the number of Book A sold in the same city?
Number of Book C sold in Bangalore = 500
Number of Book A sold in Bangalore = 250
Required percentage = (500 - 250)/250 * 100
= 250/250 * 100
= 100%
In each question, two equations numbered I and II are given. You have to solve both the equations and mark an appropriate answer.
a) x < y
b) x ≥ y
c) x > y
d) x ≤ y
e) Relation between x and y can’t be established
I. 9x2 – 29x + 22 = 0
II. 6y2 – 31y + 39 = 0
I. 9×2 – 29x + 22 = 0
x = (-18/9), (-11/9)
x = 2, 11/9
y = (-18/6), (-13/6)
y = 3, 13/6
Hence x< y
I. x2 = 11449
II. y = √11449
x = √11449 = ±107
II. y = √11449 = 107
Hence x ≤ y
I. 6x2– 25x – 14 = 0
II. 8y2– 35y + 12 = 0
I. 6×2 – 25x – 14 = 0
x = (3/6), (-28/6)
x = -1/2, 14/3
II. 8y2 – 35y + 12 = 0
y = (-3/8), (-32/8)
y = 3/8, 4
Hence no relation can be established.
I. 5x – 4y = 83
II. 6x + 3y = 45
Solving equation (i)×3 + (ii)×4, we get
(15x – 12y = 249) + (24x + 12y = 180)
x = (429/39) = 11
Putting the value of x in equation (i), we get
55 – 4y = 83
-4y = 83-55
y = -28/4 = -7
Hence x> y
I. 9x2 + 6√7 x + 7 = 0
II. 4y2 + 4√3 y + 3 = 0
I. 9x2+ 6√7 x + 7 = 0
Or, (3x + √7)2 = 0
Or, 3x = -√7
x = -3/√7
Or, (2y + √3)2 = 0
Or, 2y = -√3
y = -√3/2
Correct (-)
Wrong (-)
Skipped (-)