The three largest coal producers – China, India and Indonesia – all produced record amounts in 2022. In March 2023, both China and India set new monthly records, with China surpassing 400 million tonnes for the second time ever and India surpassing 100 million tonnes for the first time.

at will replace to because – We usually say that someone arrives at a place/arrives in a country/city Look at the examples given below: We arrived at the station at 3 o'clock. The President arrived in Rome today. Use of arrive to is incorrect. Hence, at our destination is the right usage.

Answer: C) 23 Explanation: Let us assume the two persons who can speak two languages speak Hindi and Tamil. The third person then speaks all the three languages. Tamil – Number of persons who can speak is 6. Only Tamil 6 – 2 – 1 = 3 Hindi - Number of persons who can speak is 15. Only Hindi 15 – 2 – 1 12 Gujarati – Number of persons who can speak is 6. Only Gujarati 6 – 1 = 5 Thus the number of persons who can speak only one language is 3 + 12 + 5 = 20 Number of persons who can speak two languages = 2 Number of person who an speak all the languages = 1 Total number of persons = 23.

Answer: D) 5/21 Explanation: Number of ways of (selecting at least two couples among five people selected) = (⁵C₂ x ⁶C₁) As remaining person can be any one among three couples left. Required probability = (⁵C₂ x ⁶C₁)/¹⁰C₅= (10 x 6)/252 = 5/21