Arithmetic Reasoning

1.The total of the ages of Amar, Akbar and Anthony is 80 years. What was the total of their ages three years ago ?

1. 71 years
2. 72 years
3. 74 years
4. 77 years

Answer:Option 1

Explanation:

Solution:

Required sum = (80 - 3 x 3) years = (80 - 9) years = 71 years.

2.Two bus tickets from city A to B and three tickets from city A to C cost Rs. 77 but three tickets from city A to B and two tickets from city A to C cost Rs. 73. What are the fares for cities B and C from A ?

1. Rs. 4, Rs. 23
2. Rs. 13, Rs. 17
3. Rs. 15, Rs. 14
4. Rs. 17, Rs. 13

Answer:Option 1

Explanation:

Solution:

Let Rs. x be the fare of city B from city A and Rs. y be the fare of city C from city A.
Then, 2x + 3y = 77 ...(i) and
3x + 2y = 73 ...(ii)
Multiplying (i) by 3 and (ii) by 2 and subtracting, we get: 5y = 85 or y = 17.
Putting y = 17 in (i), we get: x = 13.

Discuss in forum

3.An institute organised a fete and 1/5 of the girls and 1/8 of the boys participated in the same. What fraction of the total number of students took part in the fete ?

1. 2/13
2. 13/40
3. Data inadequate
4. None of these

Answer:Option 1

Explanation:

No explanation is given for this question Let's Discuss on Board

Discuss in forum

4.A, B, C, D and E play a game of cards. A says to B, "If you give me three cards, you will have as many as E has and if I give you three cards, you will have as many as D has." A and B together have 10 cards more than what D and E together have. If B has two cards more than what C has and the total number of cards be 133, how many cards does B have ?

1. 22
2. 23
3. 25
4. 35

Answer:Option 1

Explanation:

Solution:

Clearly, we have :
B - 3 = E ...(i)
B + 3 = D ...(ii)
A+B = D + E+10 ...(iii)
B = C + 2 ...(iv)
A+B + C + D + E= 133 ...(v)
From (i) and (ii), we have : 2 B = D + E ...(vi)
From (iii) and (vi), we have : A = B + 10 ...(vii)
Using (iv), (vi) and (vii) in (v), we get:
(B + 10) + B + (B - 2) + 2B = 133 ⇔ 5B = 125 ⇔ B = 25.

Discuss in forum

5.A pineapple costs Rs. 7 each. A watermelon costs Rs. 5 each. X spends Rs. 38 on these fruits. The number of pineapples purchased is

1. 2
2. 3
3. 4
4. Data inadequate

Answer:Option 1

Explanation:

Solution:

Discuss in forum

6.A woman says, "If you reverse my own age, the figures represent my husband's age. He is, of course, senior to me and the difference between our ages is one-eleventh of their sum." The woman's age is

1. 23 years
2. 34 years
3. 45 years
4. None of these

Answer:Option 1

Explanation:

Solution:

Let x and y be the ten's and unit's digits respectively of the numeral denoting the woman's age.
Then, woman's age = (10X + y) years; husband's age = (10y + x) years.
Therefore (10y + x)- (10X + y) = (1/11) (10y + x + 10x + y)
⇔ (9y-9x) = (1/11)(11y + 11x) = (x + y) ⇔ 10x = 8y ⇔ x = (4/5)y
Clearly, y should be a single-digit multiple of 5, which is 5.
So, x = 4, y = 5.
Hence, woman's age = 10x + y = 45 years.

Discuss in forum

7.A girl counted in the following way on the fingers of her left hand : She started by calling the thumb 1, the index finger 2, middle finger 3, ring finger 4, little finger 5 and then reversed direction calling the ring finger 6, middle finger 7 and so on. She counted upto 1994. She ended counting on which finger ?

1. Thumb
2. Index finger
3. Middle finger
4. Ring finger

Answer:Option 1

Explanation:

Solution:

Clearly, while counting, the numbers associated to the thumb will be : 1, 9,17, 25,.....
i.e. numbers of the form (8n + 1).
Since 1994 = 249 x 8 + 2, so 1993 shall correspond to the thumb and 1994 to the index finger.

Discuss in forum

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

1. 1,58,480
2. 1,59,450
3. 1,59,480
4. None of these

Answer:Option 1

Explanation:

Solution:

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

Discuss in forum

9.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?

1. 2
2. 3
3. 6
4. 12

Answer:Option 1

Explanation:

Solution:

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.

Discuss in forum

10.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 ?

1. 15
2. 29
3. 61
4. None of these

Answer:Option 1

Explanation:

Solution:

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.

Discuss in forum

Hello Guest