Tag: general knowledge

Lala Lajpat Rai was both a prominent Indian author and politician in the independence movement. He was part of the Lal-Bal-Pal triumvirate and wrote extensively on political and social issues. Tilak, Malviya, and Bismil were also freedom fighters but the question asks specifically to identify the author-politician combination.

Sarvepalli Radhakrishnan was the famous person being identified here - philosopher, statesman, and former President of India. Rajagopalachari was also a statesman, C V Raman was a physicist, and Zakir Hussain was a philosopher-president, but Radhakrishnan is specifically known for being the first Vice President and second President of India.

Indrojal Rahasya is considered the last Feluda adventure written by Satyajit Ray. It was published in 1996, shortly before Ray's death. Hatyapuri and Nayan Rahasya are earlier adventures, while Ebar Kando Kedarnath-e is from an earlier period.

Indrojal Rahasya is considered the last Feluda adventure written by Satyajit Ray. It was published in 1996, shortly before Ray's death. Hatyapuri and Nayan Rahasya are earlier adventures, while Ebar Kando Kedarnath-e is from an earlier period.

Step-by-step: Lawyer married to D (housewife) + A married to D, so A=Lawyer, D=Housewife. C (Accountant) married to F (Lecturer). Two housewives total, one is D. E is not housewife, so E=Architect. B is the second housewife. Therefore E is the Architect. The professions are: A=Lawyer, B=Housewife, C=Accountant, D=Housewife, E=Architect, F=Lecturer.

For triangle ABC, if cos(2A)+cos(2B)+cos(2C)=1, then ABC must be a right triangle. Using the identity and A+B+C=180°, we find that one angle must be 90°. If C=90°, then A+B=90°, and cos(2A)+cos(2B)=cos(2A)+cos(180°-2A)=cos(2A)-cos(2A)=0, satisfying the condition. An equilateral triangle gives 3cos(120°)=-1.5≠1.

Let the number be x. Then (1/3)×(1/4)×x = 15, so x/12 = 15, giving x = 180. Three-tenth of this number is (3/10)×180 = 54. Option D is correct. Option A (35) and B (36) are incorrect, and C (45) would be one-fourth of 180, not three-tenths.

Let the son's current age be x years. Then the father's current age is 3x years. After 5 years: (3x + 5) = 2.5(x + 5), which gives 3x + 5 = 2.5x + 12.5, so 0.5x = 7.5 and x = 15. The son is 15 years old now, and the father is 45 years old now. At the son's birth (15 years ago), the father's age was 45 - 15 = 30 years.

With 6 people around a circular table, B and F sit opposite each other. If A is beside F, then A is adjacent to F but cannot be adjacent to or opposite C (given condition). Since B is opposite F, the two neighbors of B must be from the remaining people. By elimination and the constraint that A cannot sit beside C, the two neighbors of B are D and E.

Broad gauge is the standard railway gauge used in India. The Indian broad gauge network measures 1676 mm (5.5 feet) between the inner faces of the rails, making it the widest among the options provided and indeed the most widely used gauge in the country's railway system.