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Directions (Q. 6 – 10): What value should come in the place of question mark (?) in the following questions?
56 % of 2790 +74 % of 600 = 40 % of ?
Correct
Answer: d)
(56/100)*2790 + (74/100)*600 = (40/100)*x
1562.4 + 444 = (2x/5)
2006.4 = (2x/5)
2006.4*(5/2) = x
X = 5016
Incorrect
Answer: d)
(56/100)*2790 + (74/100)*600 = (40/100)*x
1562.4 + 444 = (2x/5)
2006.4 = (2x/5)
2006.4*(5/2) = x
X = 5016
Question 10 of 20
10. Question
Directions (Q. 6 – 10): What value should come in the place of question mark (?) in the following questions?
178 × 24 – 46 × 61 + 27 × 93 = ? – 47
Correct
Answer: a)
(178 × 24) – (46 × 61) + (27 × 93) = x – 47
4272 – 2806 + 2511 + 47 = x
X = 4024
Incorrect
Answer: a)
(178 × 24) – (46 × 61) + (27 × 93) = x – 47
4272 – 2806 + 2511 + 47 = x
X = 4024
Question 11 of 20
11. Question
Rajesh takes a loan of Rs. 10000 and pays back Rs. 12597.12 after 3 years at some rate of interest compounded annually. Find the rate of interest?
Correct
Answer: c)
Amount = P*(1+(r/100))^{n}
12597.12 = 10000*(1+(r/100))^{3}
((100+r)/100)^{3} = 12597.12/10000
((100+r)/100)^{3 }= 1259712/1000000
((100+r)/100)^{3} = (108/100)^{3}
((100+r)/100) = 108/100
100 + r =108
r = 8%
Incorrect
Answer: c)
Amount = P*(1+(r/100))^{n}
12597.12 = 10000*(1+(r/100))^{3}
((100+r)/100)^{3} = 12597.12/10000
((100+r)/100)^{3 }= 1259712/1000000
((100+r)/100)^{3} = (108/100)^{3}
((100+r)/100) = 108/100
100 + r =108
r = 8%
Question 12 of 20
12. Question
If Vasu purchased some goods for Rs. 1050, and sold one-third of these goods at a loss of 12% then at what gain % should the remaining goods be sold to gain 18% on the whole transaction?
Correct
Answer: b)
Shortcut:
One-third of these goods at a loss of 12% and remaining will be two third goods.
So, the ratio = (1/3): (2/3) = 1 : 2
(x – 118)/30 = ½
= > x – 118 = 15
= > x = 133 %
So, 2/3^{rd} of the goods will be sold at 33% profit.
Incorrect
Answer: b)
Shortcut:
One-third of these goods at a loss of 12% and remaining will be two third goods.
So, the ratio = (1/3): (2/3) = 1 : 2
(x – 118)/30 = ½
= > x – 118 = 15
= > x = 133 %
So, 2/3^{rd} of the goods will be sold at 33% profit.
Question 13 of 20
13. Question
A profit of 7 % is made by selling a shirt after offering a discount of 15%. If the marked price of the shirt is Rs. 2675. Find its Cost price?
Correct
Answer: c)
Marked Price = Rs. 2675
Profit = 7%, Discount = 15%
SP = MP*(85/100)
SP = CP* (107/100)
2675 *(85/100) = CP* (107/100)
CP = Rs. 2125
Incorrect
Answer: c)
Marked Price = Rs. 2675
Profit = 7%, Discount = 15%
SP = MP*(85/100)
SP = CP* (107/100)
2675 *(85/100) = CP* (107/100)
CP = Rs. 2125
Question 14 of 20
14. Question
A and B invested in the ratio of 6 : 7. The profits are divided in the ratio of 3 : 5. If A has invested for 7 months, then B invested for?
Correct
Answer: b)
Investment ratio = 6 : 7
Profits = 3 : 5, A has invested for 7 months.
Ratio of Profit = (6*7) : (7*x) = 42 : 7x
According to the question,
42/7x = 3/5
X = 10 months
Incorrect
Answer: b)
Investment ratio = 6 : 7
Profits = 3 : 5, A has invested for 7 months.
Ratio of Profit = (6*7) : (7*x) = 42 : 7x
According to the question,
42/7x = 3/5
X = 10 months
Question 15 of 20
15. Question
5 women and 6 men can do a work in 8 days. 4 women and 9 men can do a same work in 6 days. How long will 8 women and 9 men can take to do the work?
Correct
Answer: b)
Total work = (men (or) women)*days
Work equal, so,
(5 w + 6 m)*8 = (4 w + 9 m)*6
40 w + 48 m = 24 w + 54 m
16 w = 6 m
8 w = 3 m
1 w = (3/8) m
4 w + 9 m = 4*(3/8) m+ 9 m = (21/ 2) m
8 w + 9 m = 3 m + 9 m = 12 m
Men days
(21/2) 6
12 ?
(21/2)*6 = 12x
X= 21/4 days = 5 ¼ days
Incorrect
Answer: b)
Total work = (men (or) women)*days
Work equal, so,
(5 w + 6 m)*8 = (4 w + 9 m)*6
40 w + 48 m = 24 w + 54 m
16 w = 6 m
8 w = 3 m
1 w = (3/8) m
4 w + 9 m = 4*(3/8) m+ 9 m = (21/ 2) m
8 w + 9 m = 3 m + 9 m = 12 m
Men days
(21/2) 6
12 ?
(21/2)*6 = 12x
X= 21/4 days = 5 ¼ days
Question 16 of 20
16. Question
Directions (Q. 16 – 20): Study the following information carefully and answer the given questions.
Following table shows the percentage of marks obtained by 5 different Students in 4 different subjects.
Find the average marks obtained by Pavithra in all the given subjects together?
Correct
Answer: c)
The total marks obtained by Pavithra in all the given subjects together
Directions (Q. 16 – 20): Study the following information carefully and answer the given questions.
Following table shows the percentage of marks obtained by 5 different Students in 4 different subjects.
Find the ratio between the total marks obtained by Rahul in Mathematics and Social science together to that of total marks obtained by Arun in English and Hindi together?
Correct
Answer: a)
The total marks obtained by Rahul in Mathematics and Social science together
= > (65/100)*200 + (75/100)*150
= > 130 + 112.5 = 242.5
The total marks obtained by Arun in English and Hindi together
= > (65/100)*120 + (80/100)*100
= > 78 + 80 = 158
Required ratio = 242.5 : 158 = 485 : 316
Incorrect
Answer: a)
The total marks obtained by Rahul in Mathematics and Social science together
= > (65/100)*200 + (75/100)*150
= > 130 + 112.5 = 242.5
The total marks obtained by Arun in English and Hindi together
= > (65/100)*120 + (80/100)*100
= > 78 + 80 = 158
Required ratio = 242.5 : 158 = 485 : 316
Question 18 of 20
18. Question
Directions (Q. 16 – 20): Study the following information carefully and answer the given questions.
Following table shows the percentage of marks obtained by 5 different Students in 4 different subjects.
Find the difference between the total marks obtained by Kalai to that of Ashok in all the given subjects together?
Correct
Answer: d)
The total marks obtained by Kalai in all the given subjects together
Directions (Q. 16 – 20): Study the following information carefully and answer the given questions.
Following table shows the percentage of marks obtained by 5 different Students in 4 different subjects.
Total marks obtained by Pavithra in Mathematics and English together is approximately what percentage more/less than the total marks obtained by Ashok in English, Social science and Hindi together?
Correct
Answer: b)
Total marks obtained by Pavithra in Mathematics and English together
= > (82/100)*200 + (90/100)*120
= > 164 + 108 = 272
Total marks obtained by Ashok in English, Social science and Hindi together
11) Rajesh takes a loan of Rs. 10000 and pays back Rs. 12597.12 after 3 years at some rate of interest compounded annually. Find the rate of interest?
a) 7%
b) 9%
c) 8%
d) 5%
e) None of these
12) If Vasu purchased some goods for Rs. 1050, and sold one-third of these goods at a loss of 12% then at what gain % should the remaining goods be sold to gain 18% on the whole transaction?
a) 18 %
b) 33 %
c) 27 %
d) 25 %
e) None of these
13) A profit of 7 % is made by selling a shirt after offering a discount of 15%. If the marked price of the shirt is Rs. 2675. Find its Cost price?
a) Rs. 1985
b) Rs. 1835
c) Rs. 2125
d) Rs. 1650
e) None of these
14) A and B invested in the ratio of 6 : 7. The profits are divided in the ratio of 3 : 5. If A has invested for 7 months, then B invested for?
a) 8 months
b) 10 months
c) 9 months
d) 7 months
e) None of these
15) 5 women and 6 men can do a work in 8 days. 4 women and 9 men can do a same work in 6 days. How long will 8 women and 9 men can take to do the work?
a) 6 days
b) 5 ¼ days
c) 7 ½ days
d) 4 ¾ days
e) 8 days
Directions (Q. 16 – 20): Study the following information carefully and answer the given questions.
Following table shows the percentage of marks obtained by 5 different Students in 4 different subjects.
Students
Mathematics
(200)
English
(120)
Social Science (150)
Hindi
(100)
Rahul
65
70
75
80
Kalai
85
75
90
60
Arun
75
65
60
80
Pavithra
82
90
80
85
Ashok
70
55
60
75
16) Find the average marks obtained by Pavithra in all the given subjects together?
a) 124
b) 115.75
c) 119.25
d) 102
e) None of these
17) Find the ratio between the total marks obtained by Rahul in Mathematics and Social science together to that of total marks obtained by Arun in English and Hindi together?
a) 485 : 316
b) 148 : 115
c) 236 : 173
d) 352 : 225
e) None of these
18) Find the difference between the total marks obtained by Kalai to that of Ashok in all the given subjects together?
a) 75
b) 96
c) 62
d) 84
e) None of these
19) Total marks obtained by Pavithra in Mathematics and English together is approximately what percentage more/less than the total marks obtained by Ashok in English, Social science and Hindi together?
a) 10 % less
b) 20 % more
c) 20 % less
d) 10 % more
e) 25 % less
20) If the total marks obtained by Kalai in Mathematics, Science and Hindi together are 325, then find the marks obtained by Kalai in Science?
a) 120
b) 140
c) 95
d) 115
e) None of these
Answers:
Direction (1-5)
1) Answer: c)
The correct series,
The difference of difference is, ×2
The wrong term is, 1094
2) Answer: e)
The correct series,
78, 38, 37, 54.5, 108, 269
The pattern is, *0.5 – 1, *1 -1, *1.5 -1, *2 -1, *2.5 -1,..
The wrong term is, 39
3) Answer: b)
The correct series,
795, 814, 852, 909, 985, 1080
The pattern is, +(1*19), +(2*19), +(3*19), +(4*19), +(5*19),..
The wrong term is, 987
4) Answer: a)
The correct series,
916, 917, 925, 934, 998, 1023, 1239
The pattern is, +1^{2}, +2^{3}, +3^{2}, +4^{3}, +5^{2}, +6^{3},..
The wrong term is, 935
5) Answer: d)
The correct series,
17, 16, 24, 45, 116, 455
The pattern is, *1 – 1^{3}, *2 – 2^{3}, *3 – 3^{3}, *4 – 4^{3}, *5 – 5^{3},..