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Question : The average age of 6 members of a family is 25 years. If the youngest member of the family is 15 years old, then what was the average age (in years) of the family at the time of the birth of the youngest member?
Option 1: 9
Option 2: 12
Option 3: 18
Option 4: 24
Correct Answer: 12
Solution : Given that the average age of 6 members of a family is 25 years. ⇒ Sum of the age of 6 members of the family $=25\times6 = 150$ Youngest member of the family = 15 years At the time of the birth of the youngest
Question : The dimensional formula for universal gravitational constant is
Option 1: M-1L3T2
Option 2: ML2T-2
Option 3: M-2
Option 4: M-1L3T-2
Correct Answer: M-1L3T-2
Solution : The correct answer is M-1L3T-2 .
Gravitational Constant was given by Sir Issac Newton. It is a proportionality constant which is the value of the gravitational force acting between the two bodies of unit mass
Question : In the following question, some parts of the sentence have errors and some are correct. Find out which part of a sentence has an error. The number of that part is the answer. If a sentence is free from error, your answer is "No Error".
I did not receive (1) / any letter from my parents (2) / for the last two months. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The error lies in the first part of the sentence.
Explanation: The phrase did not receive should be replaced with have not received. "Did not" is used to negate actions or events in the past, while "have not" is used to indicate that
Question : According to census 2011, which Union territory had the highest decadal population growth rate between 2001-11?
Option 1: NCT of Delhi
Option 2: Lakshadweep
Option 3: Dadra and Nagar Haveli
Option 4: Chandigarh
Correct Answer: Dadra and Nagar Haveli
Solution : The correct answer is Dadra and Nagar Haveli.
According to the Census 2011, Meghalaya achieved the highest decadal growth rate of 27.80% between 2001 and 2011. On the other hand, when we compare all states and union territories, Dadra and Nagar
Question : The chemical which is used in art and craft and can cause anemia and leukemia is:
Option 1: Benzene
Option 2: Dioxine
Option 3: Phthalate
Option 4: Aldrin
Correct Answer: Benzene
Solution : The correct option is - Benzene
An organic chemical substance called benzene, also referred to as benzol, is carcinogenic. Numerous research studies have linked benzene to aplastic anemia, acute leukemia, and abnormalities of the bone marrow. Ethylbenzene, one of its forms, is utilized in paints
Question : Directions: The sum of Reena's and her father's age is 60 and the difference between their ages is 36. What is Reena's father's age?
Option 1: 58 years
Option 2: 60 years
Option 3: 48 years
Option 4: 52 years
Correct Answer: 48 years
Solution : Given: Let the age of Reena = R and the age of Reena's father = F (I) The sum of Reena's and her father's age = R + F = 60 (II) The difference between their ages = F – R = 36 Add
Question : Which of the following represents the pair of sex chromosomes in men?
Option 1: XY
Option 2: XX
Option 3: YY
Option 4: No option is correct
Correct Answer: XY
Solution : The correct option is XY.
Males have XY chromosomes, while females have XX chromosomes. Either the X or Y chromosome may be present in the male gamete. A single DNA molecule and one protein molecule make up each chromosome. DNA is passed down from
Question : Choose the sentence with no spelling error.
Option 1: Sneha caught it and frouned.
Option 2: Sneha caught it and frownned.
Option 3: Sneha cuaght it and frowned.
Option 4: Sneha caught it and frowned.
Correct Answer: Sneha caught it and frowned.
Solution : The fourth option is correct.
Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".
Tony is giving me a lift. (1)/ He's coming to (2)/ call for me at ten. (3)/ No Error (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
Calls for someone is a phrase that means to meet someone at his/her home in order to take them somewhere. The sentence tells us that Tony will be giving a lift to the speaker and
Question : Directions: Seven people, A, B, C, D, E, F, and G, are sitting in a straight row, facing north (not necessarily in the same order). Only 2 people sit to the right of D. G is an immediate neighbour of D. Only 3 people sit between A and G. Only 2 people sit between B and C. E is not an immediate neighbour of C. F sits to the immediate right of G. How many people sit between E and D?
Option 1: 0
Option 2: 1
Option 3: 3
Option 4: 2
Correct Answer: 1
Solution : Given: (I) Seven people, A, B, C, D, E, F, and G, are sitting in a straight row, facing north. Only 2 people sit to the right of D. G is an immediate neighbour of D.
(II) Only 3 people sit between A and G.
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