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Q:

A class has 8 football players. A 5-member team and a captain will be selected out of these 8 players. How many different selections can be made ? 

A) 210 B) 168
C) 1260 D) 10!/6!
 
Answer & Explanation Answer: B) 168

Explanation:

we can select the 5 member team out of the 8 in 8C5 ways = 56 ways.

The captain can be selected from amongst the remaining 3 players in 3 ways.

Therefore, total ways the selection of 5 players and a captain can be made = 56x3 = 168 ways.

 

(or)

 

Alternatively, A team of 6 members has to be selected from the 8 players. This can be done in 8C6 or 28 ways.

Now, the captain can be selected from these 6 players in 6 ways.

Therefore, total ways the selection can be made is 28x6 = 168 ways.

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Filed Under: Permutations and Combinations
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

8 5976
Q:

Try this Brain Bashing Challenge ?

17426130_1248673081906460_4073935778689070051_n1500012638.jpg image

A) A to G : 2, 3, 7, 6, 5, 1, 4 B) A to G : 1, 4, 5, 6, 2, 7, 3
C) A to G : 5, 4, 7, 6, 3, 1, 2 D) None
 
Answer & Explanation Answer: A) A to G : 2, 3, 7, 6, 5, 1, 4

Explanation:

This can be done in two ways

1. A to G : 2, 3, 7, 6, 5, 1, 4 

2. A to G : 4, 3, 7, 5, 6, 2, 1

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Filed Under: Math Puzzles
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk

40 8907
Q:

What is my PIN number ?

15284979_1144906482283121_6846321683334684022_n1500009455.png image

A) 93714 B) 42789
C) 36671 D) 93747
 
Answer & Explanation Answer: D) 93747

Explanation:

From the hints,

Only two options for 1st and 2nd digits => 4,2 and 9,3 since it is single digits

Sum of second and third digit  = 10 

If 2 => 3rd digit = 8

If 3 => 3rd digit = 7

4th digit = 2nd digit + 1 => (2+1 =3) or (3+1 = 4)

Sum of all digits = 30

Let 5th digit be x

=> 1st possibility = 4 + 2 + 8 + 3 + x = 30 => x = 13 (Not possible since it has 2 digits)

=> 2nd possibility = 9 + 3 + 7 + 4 + x = 30 => x = 7

Therefore, the PIN is 93747 

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Filed Under: Math Puzzles
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

21 6016
Q:

Solve the Missing Number Challenge ?

17795735_1259876897452745_3803444596261153403_n1500008952.jpg image

A) 5 B) 1
C) 10 D) 2
 
Answer & Explanation Answer: B) 1

Explanation:

Logic is

1st fig : 9x2 + 5 = 23

2nd fig : 6x3 + 4 = 22

3rd fig : Nx4 + 5 = 9 => N = 1.

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Filed Under: Number Puzzles
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk

23 5759
Q:

Two trains cross each other in _____ time ? 

17499494_1251651558275279_9192886760450524065_n1500008429.png image

A) 145 sec B) 124 sec
C) 158 sec D) 162 sec
 
Answer & Explanation Answer: D) 162 sec

Explanation:

Given two trains of length = 180 mts + 180 mts 

The distance is = Length of trains = 360 mts 

Speed = 58 - 50 = 8 kmph x 5/18 m/s

Then, Time = dis/speed = (360x18) / (8x5) = 162 sec.

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Filed Under: Math Puzzles
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

14 4310
Q:

Do you know the differences between Resume, C.V and Bio-Data ?

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8 1077
Q:

Guess the Number missed in Number Challenge ?

18034303_1300193573421077_7214011606574212801_n1499930701.jpg image

A) 3 B) 5
C) 9 D) 1
 
Answer & Explanation Answer: B) 5

Explanation:

Sum of numbers in all individual boxes must be equal.

Here sum must be equal to 30.

=> x + 14 + 9 + 2 = 30 => x = 5. 

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Filed Under: Number Puzzles
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

15 5030
Q:

New coach of Team India from July 2017 ?

A) Virender Sehwag B) Rahul Dravid
C) Saurav Ganguly D) Ravi Shastri
 
Answer & Explanation Answer: D) Ravi Shastri

Explanation:

Former cricketer Ravi Shastri has been named the New coach of Team India on a Two year contract.

This will be Shastri's second stint with the team, after being the director from 2014 - 2016.

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Filed Under: Sports
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

14 3273