Consider the following statements: 1. Either A and B are of the same age or A is older than B

Monjur Alahi

Consider the following statements:
1. Either A and B are of the same age or A is older than B
2. Either C and D are of the same age or D is older than C
3. B is older than C
Which of the following conclusions can be drawn from the above statements?
(a) A is older than B
(b) B and D are of the same age
(c) D is older than C
(d) A is older than C


0 like 0 dislike
1 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

(d) From statement 1,
A ≥  B
From statement 2,
C ≤ D
and from statement 3
B > C
By combining the above three statements, we get
A ≥B > C ≤ D
Here, A > B > C < D
or A = B > C = D
A > C
So, A is older than C.

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
Baichung’s father is 26 years younger than Baichung’s grandfather and 29 years older than Baichung. The sum of the ages of all the three is 135 years.

Let Baichung's father's present age be x years Given Baichung's father is 29 years older than Baichung Hence Baichung's age is (x − 29) years Baichung's grandfather is 26 years older than Baichung's...

1 Answers 1 views
Shobo’s mother’s present age is six times Shobo’s present age. Shobo’s age five years from now will be one third of his mother’s present age.

At present, _________ Shobo's age = x years His mother's age = 6 times of  Shobo's age = 6x years Five years from now  ________________ Shobo's age = ( x + 5 ) years According to the problem given, x...

1 Answers 1 views
A grandfather is ten times older than his granddaughter. He is also 54 years older than her. Find their present ages.

Let age of grand daughter be x age of grandfather is 10 x A/Q 10 x = 54 + x 9 x = 54 x = 6 10 x = 60 age of grandfather is 60 age of granddaughter is...

1 Answers 1 views
Two nonideal batteries are connected in series. Consider the following statements: (A) The equivalent emf is larger than either of the two emfs.

(b) A is correct but B is wrong. Explanation: Let the emfs of the batteries be e1 and e2, and their respective resistances be r1 and r2.  Since the batteries are connected in series,...

1 Answers 1 views
Two nonideal batteries are connected in parallel. Consider the following statements: (A) The equivalent emf is smaller than either of the two emfs.

(c) B is correct but A is wrong.

1 Answers 1 views
The ratio between the present ages of P and Q is 3 : 4. Four years hence Q will be five years older than P. What is P’s present age?

(a) Let the present ages of P and Q be 3x and 4x respectively. Then, (4x + 4) – (3x + 4) = 5 ⇒ 4x – 3x = 5 ⇒ x = 5  P’s present age =...

1 Answers 1 views
Examine the following statements: 1. Either A and B are of the same age or A is older than B.

(d) (1) A ≥ B (2) D ≥C (3) B &gt; C Then either B &amp; D are of same age or B is older than D and either A &amp; D is older than D....

1 Answers 1 views
Geeta is older than her cousin Meena. Meena’s brother Bipin is older than Geeta. When Meena and Bipin visit Geeta, they like to play chess.

(d) From the given information, we conclude that ; Bipin is older than Geeta and Geeta is older than Meena. Hence, Meena is the youngest of the three.

1 Answers 1 views
The Megaliths of South India are mainly associated with (a) Mesolithic age (b) Neolithic age (c) Chalcolithic age (d) Iron age

(d) Iron age

1 Answers 1 views
Stone and copper were used in (a) Chalcolithic age (b) Neolithic age (c) Mesolithic age (d) Paleolithic age

(a) Chalcolithic age

1 Answers 1 views
X