# Math Puzzles & Quiz | Practice Set 8 | QuickBytes

## Practice and Learn Math Puzzles,MCQ & Quiz Set 8. QuickBytes publishes easy, interesting and hard mathematical puzzles to exercise and sharpen your brain Daily, Weekly & Monthly.

### 1.

#### Correct Answer

**Correct Answer:**
8

153, 810 is divisible by all the numbers in the list except 8.

Hence, 8 must give the largest remainder.

#### Wrong Answer

**Correct Answer:**
8

153, 810 is divisible by all the numbers in the list except 8.

Hence, 8 must give the largest remainder.

### 2.

#### Correct Answer

**Correct Answer:**
60

Yellow light flashes every 15 seconds, Green light flashes every 20 seconds.Therefore, they will flash together after LCM of 20 and 15 i.e. every 60 seconds.

In every hour they will flash 3600/60 = 60 times.

#### Wrong Answer

**Correct Answer:**
60

Yellow light flashes every 15 seconds, Green light flashes every 20 seconds.Therefore, they will flash together after LCM of 20 and 15 i.e. every 60 seconds.

In every hour they will flash 3600/60 = 60 times.

### 3.

#### Correct Answer

**Correct Answer:**
79

Solve this question backwards and get the answer as 79 apples.

You can apply the formula as (apples in the end 2 + 1) and apply this formula as many times as is the number of persons to whom he has distributed the items given.

#### Wrong Answer

**Correct Answer:**
79

Solve this question backwards and get the answer as 79 apples.

You can apply the formula as (apples in the end 2 + 1) and apply this formula as many times as is the number of persons to whom he has distributed the items given.

### 4.

#### Correct Answer

**Correct Answer:**
20

Since 20 boys and 20 girls eat 20 apples in 20 minutes, means they will eat lapple in 20 minutes.

#### Wrong Answer

**Correct Answer:**
20

Since 20 boys and 20 girls eat 20 apples in 20 minutes, means they will eat lapple in 20 minutes.

### 5.

#### Correct Answer

**Correct Answer:**
Above two

Two cases are possible.

#### Wrong Answer

**Correct Answer:**
Above two

Two cases are possible.

### 6.

#### Correct Answer

**Correct Answer:**
8

Number of fruits will be total no. of 1's,2's and3's and subtracting twice the no. of 4's.

Number of fruits at the end= Number of ( 's + 2' s + 3's ) - 2*Number of 4's = 14 - 6 = 8.

#### Wrong Answer

**Correct Answer:**
8

Number of fruits will be total no. of 1's,2's and3's and subtracting twice the no. of 4's.

Number of fruits at the end= Number of ( 's + 2' s + 3's ) - 2*Number of 4's = 14 - 6 = 8.

### 7.

#### Correct Answer

**Correct Answer:**
609

All numbers a re the same when flipped upside-down ( known as invertible numbers).

Only 1, 6, 8, 9 and 0 represent digits which when inverted produce the sa me digit or another digit (as in case of 6 and 9).

#### Wrong Answer

**Correct Answer:**
609

All numbers a re the same when flipped upside-down ( known as invertible numbers).

Only 1, 6, 8, 9 and 0 represent digits which when inverted produce the sa me digit or another digit (as in case of 6 and 9).

### 8.

#### Correct Answer

**Correct Answer:**
185

Clea rly, ( 52-32 )= 16, ( 122-82 )= 80, ( 342-272 )= 427,

So missing number is: ( 212-162 )= 185

#### Wrong Answer

**Correct Answer:**
185

Clea rly, ( 52-32 )= 16, ( 122-82 )= 80, ( 342-272 )= 427,

So missing number is: ( 212-162 )= 185

### 9.

#### Correct Answer

**Correct Answer:**
7

3 trains which had already started before the start of Mr. Jain while 4 trains will be those which started after the start of Mr. Jain.

#### Wrong Answer

**Correct Answer:**
7

3 trains which had already started before the start of Mr. Jain while 4 trains will be those which started after the start of Mr. Jain.

### 10.

#### Correct Answer

**Correct Answer:**
10

These will be the lockers number 1, 4, 9, 16, 25, 36, 49, 64, 81 and 100

#### Wrong Answer

**Correct Answer:**
10

These will be the lockers number 1, 4, 9, 16, 25, 36, 49, 64, 81 and 100

### 11.

#### Correct Answer

**Correct Answer:**
Same

How much liquid is being moved does not matter

#### Wrong Answer

**Correct Answer:**
Same

How much liquid is being moved does not matter

### 12.

#### Correct Answer

**Correct Answer:**
8

112 pairs of shoes = 224 shoes, 224 + 28 = 8

#### Wrong Answer

**Correct Answer:**
8

112 pairs of shoes = 224 shoes, 224 + 28 = 8

### 13.

#### Correct Answer

**Correct Answer:**
5

IF x = the number of men, then x + 2x + 4x = 35. Therefore 7x = 35, So X = 5.

#### Wrong Answer

**Correct Answer:**
5

IF x = the number of men, then x + 2x + 4x = 35. Therefore 7x = 35, So X = 5.

### 14.

#### Correct Answer

**Correct Answer:**
600

72 + 12 x 100=600

#### Wrong Answer

**Correct Answer:**
600

72 + 12 x 100=600

### 15.

#### Correct Answer

**Correct Answer:**
1

1/8 x 1= 1cubicle

#### Wrong Answer

**Correct Answer:**
1

1/8 x 1= 1cubicle