1)400 240 144 86.4 51.84 31.104 ?
A)19.2466
B)17.2244
C)16.8824
D)18.6624
E)None of these
Click to View Answer
Answer D)18.6624
Multiply by 0.6
2)4 6 9 13.5 20.25 30.375 ?
A)40.25
B)45.5625
C)42.7525
D)48.5625
E)None of these
Click to View Answer
Answer B)45.5625
Multiply by 3/2
3)128 640 983 1199 1324 ?
A)1541
B)1388
C)1642
D)1288
E)None of these
Click to View Answer
Answer B)1388
+8^3,+7^3,+6^3,+5^3,+4^3
4)828 424 220 116 ? 33
A)62
B)69
C)58
D)64
E)None of these
Click to View Answer
Answer A)62
828/2 +10, 424/2 +8, 220/2+6, 116/2+4
5)540, 272.5, ? , 141.25, 78.125, 49.06
A)160.25
B)141.25
c)90.50
D)210.75
E)None of these
Click to View Answer
Answer B)141.25
(540+5)/2 = 272.5
(272.5+10)/2 = 141.25
(141.25+15)/2 = 78.125
(78.125+20)/2 = 49.0625
(Q6-10)Following Line graph shows the percentage increase in the salaries of four persons during the years 2003 to 2008 with respect to previous year.
6)Which of the following is the average percentage increase in the salary of C during the six years?
A)20%
B)40%
C)15%
D)10%
Click to View Answer
Answer A)20%
Average percentage increase in salary of B during 6 years = (10+20+30+10+20+30)/6 = 20%
7)If the ratio of salaries A and B at the end of the year 2002 was 4:3, then what was the ratio of their salaries at the end of year 2008?
A)20:44
B)40:39
C)50:39
D)50:44
Click to View Answer
Answer C)50:39
Salary of A at the end of the year 2008 = 120% of 125% of 130 % of 120% of 110% of 110% of 4x
Salary of A at the end of the year 2008 = 110% of 110% of 120 % of 120% of 130% of 130% of 3x
Ratio of their salaries at the end of the year 2008 =
(120*125*130*120*110*110*4x)/(110*110*120*120*130*130*3x)=(125*4x)/(130*3x) = 50:39
8)If the salaries of B and D were equal at the end of the year 2004, then what was the ratio of the salaries of B and D at the end of the year 2005?
A)12:13
B)14:19
C)12:11
D)15:14
Click to View Answer
Answer C)12:11
The salaries of B and D were equal at the end of the year 2004.
B’s salary = D’s salary = x
Ratio of the salaries of B and C at the end of the year 2005 = 120% of x: 110% of x =12:11
9)If the ratio of salaries of A, B, C and D at the end of the year 2004 was 7:11:17:13, then what was the ratio of their salaries at the end of the year 2007?
A)2:13:17:19
B)4:19:13:17
C)7:12:17:11
D)15:14:17:11
Click to View Answer
Answer C)7:12:17:11
Ratio of salaries of A, B, C and D at the end of the year 2004 = 7:11:17:13
Ratio of salaries of A, B, C and D at the end of the year 2007
= 130% of 120% of 110% of 7 : 120% of 120% of 130% of 11 : 130% of 110% of 120% of 17: 110% of 110% of 120% of 13
= 7:12:17:11
10)If the salary of D at the end of the year 2002 was Rs. 50000, then what was his salary at the end of 2007?
A)Rs. 2,13,719
B)Rs. 1,13,016
C)Rs. 1,13,256
D)Rs. 1,15,417
Click to View Answer
Answer C)Rs. 1,13,256
salary of D at the end of the year 2002 = Rs. 50000
Salary of D at the end of 2007 = 130% of 120% of 110% of 110% of 120% of 50000 = 1,13,256
