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**Important Points to note while solving Number Series Problems :**

- Examine the difference between adjacent numbers. The difference between two consecutive numbers may be constant, prime number, perfect square, perfect cube etc.
- See whether there is a multiplication or division pattern between two adjacent numbers.
- Check whether adjacent numbers in the series change based on a logical pattern like multiplying first number by 2, second by 3, third by 4 etc.,
- See if you can find a rule that involves using two or more basic arithmetic functions (+, -, %, X) in the series like multiply by 2 then add by 3 etc.

###
**Set 1 **

**Directions (1-5): What should come in place of question mark (?) in the following questions ?**

**7(2/3) - (5/6) of (8/15) = ?**- 7(2/9)
- 5(1/3)
- 7(2/3)
- 6(2/9)
- None of these
**15.15 + 151.5 + 1.515 + 0.1515 = ?****(? / 1568) = (242 / ?)**- 36
- 576
- 616
- 1024
- None of these
**(14 x √?) / 48 = 56/3**- 64
- 8
- 128
- 4096
- None of these
**? % of 584 = 43.8 x 8**- 70
- 40
- 50
- 60
- None of these

### Set 2

**Directions (1-2) : What approximate value should come in place of the question mark (?) in the following questions ?**

**94.98% of 1299 - 12.49% of 1839.97 = ?**- 1250
- 900
- 1050
- 1005
- 950
**898.254 / 149.568 + 19.093 = ?**- 15
- 25
- 10
- 50
- 30

### Set 3

**Directions (1-3) : In each of the following questions, one number is wrong in each of the number series. You have to identify that number.**

**6 3 4.5 11.5 39.375 177.1875**- 39.375
- 3
- 11.5
- 177.1875
- 4.5
**218 190 166 140 118 98**- 118
- 140
- 166
- 218
- 98
**2185 727 241 79 24 7**- 24
- 727
- 79
- 241
- 2185

###
**Set 4 **

**In what time a 350 m long train running at 108 kmph speed can overtake a 175 m long train running at 36 kmph speed ?**- 26.25 sec
- 12.5 sec
- 21.75 sec
- 32.15 sec
- None of these
**Speed of a boat is 10 kmph. It goes to a distance from A to B upstream and comes back from B to A downstream in 15 hours. If the speed of the current is 2 kmph, find the distance between A and B.**- 60 km
- 75 km
- 90 km
- 72 km
- None of these
**16 men can do a piece of work in 16 days. 4 days after they started the work, 8 more men joined them. How many days will they now take to complete the remaining work ?**- 12 days
- 8 days
- 15 days
- 6 days
- None of these
**7/8 of 3/7 of a number is equal to 25% of 45% of another number. What is the ratio of the first and the second numbers respectively ?**- 3 : 7
- 9 : 10
- 3 : 10
- 3 : 2
- None of these
**What is the difference between Simple and Compound Interest for two years on Rs. 75000 at 5 % rate ?**- Rs. 375
- Rs. 67.50
- Rs. 87.75
- Rs. 122.50
- None of these
**The average of 20 numbers is 28. Latter, it was pointed out that value of one of the numbers was wrongly taken as 72 instead of 87. What is the correct average ?**- 32
- 25.5
- 30.75
- 31.25
- None of these
**A number when divided by 136 leaves a remainder 71. If the same number is divided by 17, then the remainder will be ?**- 4
- 18
- 3
- Can't be determined
- None of these
**How many square tiles of 20 cm length will be required to pave a footpath 1 m wide build around the outside of a grass plot 32 m long and 16 m wide ?**- 1200
- 1800
- 3200
- 2500
- 2400
**A man has three different kinds of milk of 153 litres, 238 litres and 306 litres. Find the least number of tins of equal size required to store all the milk without mixing ?**- 29
- 17
- 51
- 41
- None of these
**Computer A can process an input in 4 minutes and B takes 6 minutes. If computers A, B and C together can process 37 inputs in one hour, find how much time the computer C can take to process 5 inputs ?**- 5 mins
- 12 mins
- 25 mins
- Can't be determined
- None of these

i think set 1 question 4 answer ie 16 ,,,can anyone plzz conform it..

ReplyDeleteNo. the given answer is correct

ReplyDelete7/10

ReplyDeleteyea it is correct ...may be i did something worng first time ..thnx for reply

ReplyDeleteplease ckeck set-2 q-2

ReplyDeleteMaam ..can u plz tell me what questions can we expect in GA section in NIACL aao..plz tell me maam..

ReplyDelete9th answer will be 2

ReplyDeletesry its 4. i misunderstood the sum.

ReplyDelete1 qestion is wrong...i have got 19(2/9)

ReplyDeletei too got the same answer

ReplyDeletepla any one give me explanation

ReplyDelete16/20. Kindly upload the answers Admin. Having doubt in some questions. Thanks.

ReplyDeletePlease explain sol for question number 10

ReplyDelete900/150+19=25

ReplyDeletesir plz upload chapter wise sets also

ReplyDeleteease give me explanation for 8 and 9 in set 4 plzzzzzzzz

ReplyDeletein 1 hr A can process 15

ReplyDeleteB ....................10

in 1 hr total 37 so C can process 12

therefore 60 min:12::x:5 =>25 min

i think set 4 question 9 answer ie 17 ,,,can anyone plzz conform it..

ReplyDeletehi m new here

ReplyDeleteits 7 (2/3) - 5/6 * 8/15

ReplyDeleteso its 7 (2/3) - (4/9)

which is 7( 6-4 / 9)

hence 7 (2/9)

16 men & 12 women together can complete a work in 8 days.20 men can complete the same work in 16 days.How many days will 16 women take to complete the same work?

ReplyDeleteA)40 days B)30 C)24 D)20 E)10

the answer given is 24 days. But i am getting 10 days..

someone plz solve this...