Puzzles Questions and Answers

Showing 61 - 70 of 100 questions

A driving school claims an average test pass rate of 76.8 percent. What is the least number of pupils required to achieve this result?

130

125

126

120

correct answer b

Answer: Option 2(125).

Explanation:
96 passes out of 125 give an average of 76.8%.

Barbara visited her High School friend, Natasha after their 25th school reunion.
“What a nice pair of children you have, are they twins?“, Barbara asked.
“No my sister is older than I”, said Natasha’s son Philip.
“The square of my age plus the cube of her age is 7148” 62 said Philip is missing.
“The square of my age plus the cube of his age is 5274”, said Matilda.
How old were they?

Matilda 20, Philip 16

Matilda 18, Philip 18

Matilda 19, Philip 18

Matilda 19, Philip 17

correct answer d

Answer : Option 4

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

correct answer c

Answer:Option 3 (59)

Explanation.
The first 56 balls could be of all colours except red. This would leave 8 balls, all of which are red, so any three chosen would be red.

	Insert the missing number?

correct answer b

Clearly, (1st row)x(2nd row)x(3rd row) = 4th row.
In the first column, 6x5x4 = 120.
In the second column, 6x7x3 = 126.
Let the missing number in the third column be x.
Then, 8x5xX = 320.
40X =320
X = 8.

	Insert the missing number?

correct answer c

In the first column, 2x1+1 = 3.
In the second column, 14 x 7 + 7 = 105.
Let the missing number in the third column be x.
Then (x+1)9=117 or 9x=108. Therefore x=12.

Insert the missing character?

correct answer a

Answer: Option 1

Explanation

The letters in the second and third rows are five steps ahead of those in the first and second rows respectively. So, the missing letter will be five steps ahead of F, which is K

Insert the missing number?

correct answer b

Answer: Option 2(3).

Explanation:
In the first column, 12×6 = 72; 18÷6 = 3.
In the third column, 16×8 = 128; 32÷8 = 4.
In the second column, 14×8 = 112.
So, the missing number = 24÷8 = 3.

Insert the missing number?

correct answer b

Answer: Option 2(3).

Explanation:
In the first column, 12×6 = 72; 18÷6 = 3.
In the third column, 16×8 = 128; 32÷8 = 4.
In the second column, 14×8 = 112.
So, the missing number = 24÷8 = 3.