Read the information given below carefully and answer the question that follows:
(A) The mean of 20 observations is 17. On checking, it was found that two observations were wrongly copied as 3 and 6. If the wrong observations are replaced by correct values 8 and 9, then the correct mean will be 16.4.
(B) The ratio of 43.5:25 is same as 4 : 1
(C) The ratio of 1.5 : 2.5 can also be written as 3 : 5
(D) If : 2A = 3B = 4C, then, A : B : C is equal to 6 : 4 : 3
Choose the correct option:
Held on 23 May 2025 · Verified 13 Jul 2026.
(A), (B), (C) and (D) are all correct
(A) and (B) are incorrect but (C) and (D) are correct
(A), (B), (C) and (D) are all incorrect
(A) is incorrect but (B), (C) and (D) are correct
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