The mean salary paid to 1,000 employees of an establishment was found to be Rs. 180.40. Later on, it…
The original total salary was 1,000 × ₹ 180.40 = ₹ 1,80,400. Correcting the entries gives ₹ 1,80,400 − ₹ 297 − ₹ 165 + ₹ 197 + ₹ 185 = ₹ 1,80,320. Dividing by 1,000 gives…
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The mean salary paid to 1,000 employees of an establishment was found to be Rs. 180.40. Later on, it was discovered that the salary of two employees was wrongly entered as Rs. 297 and 165. Their correct salaries were Rs. 197 and 185. The correct Arithmetic mean will be
Answer and explanation
Correct answer D
The original total salary was 1,000 × ₹ 180.40 = ₹ 1,80,400. Correcting the entries gives ₹ 1,80,400 − ₹ 297 − ₹ 165 + ₹ 197 + ₹ 185 = ₹ 1,80,320. Dividing by 1,000 gives the corrected mean of ₹ 180.32.
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Jammu & Kashmir and Ladakh SET (JKSET/LASET)