**Hello Aspirants.**

Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in ** Number series and Miscellaneous Question** which is common for SBI, IBPS, RBI, LIC, NICL and other competitive exams.

**Q (1-5). In the following questions, two equations numbered I & II are given. You have to solve both equations and mark one of the options given below.**

**1,-1,1,-3,-5,?**

1. -7

2. -11

3. 77

4.-77

5. None

Answer :**4.-77**

Solution:

1*1-2 =-1

-1*3+4 = 1

1*5-8 = -3

-3*7+16 =-5

-5*9-32 = -77

**1,?, 15, 51, 131, 281**

1. 1

2. 2

3. 3

4. 4

5. 5

Answer :**3. 3**

Solution:

1+12+13 = 3

3+22+23 = 15

15+32+33 = 51

51+42+43 = 131

131+52+53 = 281

**Satish rows downstream from P to Q in 3 hours. In return journey his boat is powered by an engine due to which speed of the boat increased by 20% by this he reached the point P in 3 hours. If the speed of the stream is 2 Km/hr then what is the initial speed of the boat?**

1. 20 Km/hr

2. 22 Km/hr

3. 24 Km/hr

4. 26 Km/hr

5. Cannot be determined

Answer :**1. 20 Km/hr**

Solution:

S+R = 1.2S-R

S =20

**A train with ‘X’ Km/hr speed starts from station A towards station B at 6 AM. After 3 hours another train starts from Station B towards Station A with speed ‘X+15’. If the distance between A and B is 1080 Km and the trains meet at mid way then at what time they meet?**

1. 12 Noon

2. 3:00 PM

3. 6:00 PM

4. 9:00 PM

5. Cannot be determined

Answer :**4. 9:00 PM**

Solution:

540 = x(t+3)

540 = (x+15)t

solving t =9 hours

**A train of certain speed crosses a platform of length of 200 m in 24 sec. Some additional bogies were added to the train due to which length of train increased by 400 m and speed of the train reduced by 36 km/hr. Now it crossed a person in 48 sec. Then what is the length of the train?**

1. 300 m

2. 400 m

3. 420 m

4. 480 m

5. Cannot be determined

Answer :**4. 480 m**

Solution:

s = (x+200)/24

s-10= (x+400)/48

x = 480

**A takes twice as much time as B and thrice as much time as C to finish a piece of work. Working together they can finish the work in 12 days. B can do the work alone in ?**

1. 24 days

2. 36 days

3. 54 days

4. 72 days

5. None

Answer :**4. 72 days**

Solution:

1/x+2/x+3/x =1/12

x =72 days

B = 36 days

**Three pipes A, B and C can fill a cistern in 12 hours. After working at it together for 4 hours, C is closed and A and B can fill the remaining part in 12 hours. The number of hours taken by B alone to fill the cistern is?**

1. 12 hours

2. 24 hours

3. 36 hours

4. 54 hours

5. Cannot be determined

Answer :**5. Cannot be determined**

Solution:

Based on above solution cannot be determined

**How many litres of water must be added to 120 litre mixture that contains milk and water in the 7:5 such that the resulting mixture has 50% water in it?**

1. 5 liters

2. 10 liters

3. 15 liters

4. 20 liters

5. None

Answer :**5. None**

Solution:

Milk =70

water =50

50+x/x+120 = 50%

x =20

**Find the average of present ages of A,B,C**

**Statement I:**Average age of A,B,C five years hence is 6

**Statement II:**Ratio of present age of A,B,C respectively is 2:3:4

**Statement III:**Sum of Present ages of A,B,C is 18

1. Statement I alone is sufficient

2. Statement II alone is sufficient

3. Statement III alone is sufficient

4. All are necessary

5. None is sufficient

Answer :**1. Statement I alone is sufficient**

**What is ratio of number of Lions ,Tigers and Zebras in the Zoo?**

**Statement I:**Sum of all the animals is 300

**Statement II:**Number of Tigers are 20 more than Lions

**Statement III:**Number of Zebras are 20 more than Tigers

1. Statement I alone is sufficient

2. Statement II alone is sufficient

3. Statement III alone is sufficient

4. All are necessary

5. None is sufficient

Answer :**All are necessary**

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