12. The average of 10 observations is 3.5. If two observations namely 3.5 and 2.5 are deleted, find the new average. ANWER=3.625
13. The average attendance of an office for the first four days of the week was 780 and for the first five days
it was 840. How many were present on Friday? ANSWER= 1080
14. The average number of eggs sold on Monday, Tuesday and Weanesday, in a shop was 43. The average for Tuesday, Wednesday and Thursday was 45. On Thursday the sale was 42. Find the sale on Monday. ANSWER= 36EGGS
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Step-by-step explanation:
10*3.5=35
3.5 and 2.5 are deleted thedn
35-2.5+3.5=29
29/8=3.625
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