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# Aptitude Number System

1. What approximate value should come inplace of the question mark (?) in thefollowing question? (You are not expected to find out the exact value)
1299 ÷ 19.99 ×25.01 + 400.01 = ?

1. 2025
2. 2300
3. 1925
4. 2200
5. 1700

2. What approximate value should come in place of the question mark (?) in the following question? (You are not expected to find out the exact value.)
(150/17) × (199/13)÷ (16/91)= ?

1. 650
2. 700
3. 770
4. 820
5. 850
3. What approximate value should come in place of the question mark (?) in the following question? (You are not expected to find out the exact value.)
9999 ÷ 99 ÷ 9 = ?
1. 18
2. 15
3. 6
4. 11
5. 20
4. What approximate value will come in place of the question mark (?) in the following question?
(560 + 321) ×(720 – 699)/16 = ?
1. 1050
2. 1355
3. 1250
4. 1155
5. 1455

5. What approximate value should come in place of the question mark (?) in the following expression?
(827 + 328 – 563) ÷ (712 – 41 ×11) = ?
1. 1
2. 2
3. 3
4. 4
5. 6
6. Directions: What will come in place of the question mark (?) in the following question?
24 – 2 [18 ÷ (? + 1)] = 43 – (52)
1. 4
2. 5
3. – 5
4. 6
5. – 6
7. Directions: Identify the value that will come in place of question mark
52 – 4 of (17 – 12) + 4 ×7 = ?
1. 0
2. 58
3. 60
4. 70
5. 100
8. Directions: What will come in place of the question mark?
? = 39 + 4 ×6 ×24 ÷ 2 + 64 ÷ 2 ×91
1. 3239
2. 3229
3. 3249
4. 3259
5. 3219
9. Directions: What will come in place of the question mark?
? = 268 – 24 ÷ 3 ×8 + 216 – 168 ÷ 28 ×364
1. 640
2. – 220
3. – 1764
4. – 1800
5. 2200
10. What is the value of
0.3 + 0.3 – 0.3 ÷ 0.3× (0.3 ×0.3)?
1. 0.28
2. – 10.51
3. 0.51
4. 0.36
5. – 3.11
11. Directions: Choose the pair of numbers which come next in the given series.
28, 25, 5, 21, 18, 5, 14, _, _
1. 11, 5
2. 10, 7
3. 11, 8
4. 5, 10
5. 10, 5
12. Directions: Choose the pair of numbers which come next in the given series.
9, 12, 11, 14, 13, 16, 15, _, _
1. 14, 13
2. 18, 21
3. 14, 17
4. 12, 13
5. 18, 17
13. Directions: Choose the pair of numbers which comes next in the given series.
75, 65, 85, 55, 45, 85, 35, _, _
1. 25, 15
2. 25, 85
3. 35, 25
4. 85, 35
5. 25, 75
14. Directions: Choose the pair of numbers which come next in the given series.
1, 10, 7, 20, 13, 30, 19, _, _
1. 26, 40
2. 29, 36
3. 40, 25
4. 25, 31
5. 40, 50
15. Directions: Choose the pair of numbers which come next in the given series.
10, 20, 25, 35, 40, 50, 55, _, _
1. 70, 65
2. 60, 70
3. 60, 75
4. 60, 65
5. 65, 70
16. A square and a rectangle each have an area of 400 sq. m. The length of the rectangle exceeds the length of a side of the square by 5 m. Find the breadth of the rectangle.
1. 16 m
2. 18 m
3. 19 m
4. 20 m
5. 21 m
17.If A and B work together, a work will be completed in 2/3 of the time taken by B and C together. If A is k times more efficient than C, what is the value of k?
1.  2/3
2.  3/2
3. 2
4. Cannot be determined
5. None

18. There are 3 bells A, B and C. A and Bring together once in every 2 minutes and B and C ring together once in every 3 minutes. If all the three bells ring together at 8:00 am for the first time, at what time will they ring together again for the sixth time?
1. 8:10 am
2. 8:12 am
3. 8:15 am
4. 8:30 am
5. 8:20 am
19. If a quantity is first increased by 30 percent and then decreased by 50 percent, by what percentage does it have to increase to get back to the original quantity?
1. 30 percent
2. 54 percent
3. 31 percent
4. 90 percent
5. 20 percent
20. In every box of 120 electric lamps, 5 percent are defective. If a company needs 2000 non defective lamps, what minimum number of boxes does it have to purchase?
1. 16
2. 17
3. 18
4. 19
5. 20
21. A shopkeeper purchased 80 kg of wheat at the rate of Rs. 6.75 per kg and mixed it with 120 kg of wheat purchased at Rs.8 per kg.  At what rate per kg must he sell the mixture to have a gain of 20%?
1. Rs. 7
2. Rs. 11
3. Rs. 9
4. Rs. 10
5. Rs. 12
22. In a certain store, the profit is 320% of the cost. If the cost increases by 25%,but the selling price remains constant ,then what percentage of the selling price is the profit?
1. 30%
2. 70%
3. 100%
4. 250%
5. None of these

23. The average of three numbers is x. If the second number is 9 more than the first and the third number is 5 more than x,what is the difference between x and the first number?
1. 5
2. 7
3. 8
4. 9
5. 10
24. Ten years ago, the average age of a family of 4 members was 25 years. However, a boy was born 5 years back in the family.  What is the average age of the family now?
1. 28
2. 29
3. 30
4. 32
5. 33

25. The ratio of red balls to white balls in a bag is 2 : 3. If 5 red balls are taken from the bag, the ratio becomes 1 : 2. How many balls were there in the bag?
1. 30
2. 35
3. 40
4. 50
5. 55
26. 6 gallons of wine are drawn from a cask and replaced by 6 gallons of water. 6 gallons of the mixture are drawn andagain replaced by 6 gallons of water. Ifthe ratio of wine to water in the cask is now 81 : 19, how much wine was in the cask at first?
1. 60 gallons
2. 57 gallons
3. 36 gallons
4. 30 gallons
5. 20 gallons

27. A train covers a certain distance in 50minutes at the speed of 48 km/hr. What should be the speed of the train to complete the journey in 40 minutes?
1. 80 km/hr
2. 55 km/hr
3. 70 km/hr
4. 60 km/hr
5. 50 km/hr

28. What will be the compound interest on a certain amount for a year payable half yearly at the same rate of interest if the simple interest on the same amount for 2 years at 6% per annum is Rs. 860?
1. Rs. 636.47
2. Rs. 536.47
3. Rs. 436.47
4. Rs. 336.47
5. Rs. 236.47
29. A debt of Rs. 800 is due in 4 years. Which of the following annual payments will discharge this debt at the rate of 10%per annum?
1. Rs. 130
2. Rs. 150
3. Rs. 190
4. Rs. 174
5. Rs. 200

30. If the marked price of an article is 40% more than the cost price, what percentage of discount can be given, so that the vendor makes a 20% profit?
1. 20%
2. 14.28%
3. 16.66%
4. 25%
5. 10%

31. A sold a watch to B at a gain of 5% and B sold it to C at a gain of 4%. If C paid Rs. 1,092 for it, the price paid by A is ?
1. Rs. 993.72
2. Rs. 996
3. Rs. 1,000
4. Rs. 995.90
5. Rs. 900
36. If ‘KRN’ means ‘Callous collision life’,’RTP’ means ‘Life very sad’ and ‘NPD’means ‘Collision sad future, then what’s the code for ‘Callous’?
1. R
2. N
3. K
4. Cannot be determined
5. None of these
37. If MAGIC is coded as PXJFF, how will LEASH be coded?
1. PBDVD
2. OBDVL
3. OHEOK
4. OBDPK
5. None of these

38. If DOWN is coded as FQYP, how will WITH be coded?
1. KYN
2. JYK
3. YKVJ
4. JKVY
5. None of these

39. If RAVE is coded as SXWB, how will SCAN be coded?
1. TDBO
2. TZBK
3. PZXK
4. TVXK

5. None of these