Arithmetic Reasoning

In a garden, there are 10 rows and 12 columns of mango trees. The distance between the two trees is 2 metres and a distance of one metre is left from all sides of the boundary of the garden. The length of the garden is

A:

20 m

B:

22 m

C:

24 m

D:

26 m

Answer: C

Each row contains 12 plants.

There are 11 gapes between the two corner trees (11 x 2) metres and 1 metre on each side is left.

Therefore Length = (22 + 2) m = 24 m.

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The 30 members of a club decided to play a badminton singles tournament. Every time a member loses a game he is out of the tournament. There are no ties. What is the minimum number of matches that must be played to determine the winner ?

A:

15

B:

29

C:

61

D:

None of these

Answer: B

Clearly, every member except one (i.e. the winner) must lose one game to decide the winner. Thus, minimum number of matches to be played = 30 - 1 = 29.

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A is 3 years older to B and 3 years younger to C, while B and D are twins. How many years older is C to D?

A:

2

B:

3

C:

6

D:

12

Answer: C

Since B and D are twins, so B = D.

Now, A = B + 3 and A = C - 3.

Thus, B + 3 = C - 3 D + 3 = C-3 C - D = 6.

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What is the product of all the numbers in the dial of a telephone ?

A:

1,58,480

B:

1,59,450

C:

1,59,480

D:

None of these

Answer: D

Since one of the numbers on the dial of a telephone is zero, so the product of all the numbers on it is 0.

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A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ?

A:

45

B:

60

C:

75

D:

90

Answer: D

Let number of notes of each denomination be x.

Then, x + 5x + 10x = 480 16x = 480 x = 30.

Hence, total number of notes = 3x = 90.

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Questions for: Arithmetic Reasoning