the average of 12 numbers arranged in a row is 24.5 the average of the first 9 numbers is 25.2 and the average of the last 9 numbers is 25.3 the numbers from the 4th to the ninth number and such that each is greater than one immediately preceding it it by one find fourth and the ninth number in the list of the numbers.
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Answer:
28.9 ans hope help plz like
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Answer:
38
Step-by-step explanation:
Sum of 20 numbers =20×12=240
Sum of first 12 numbers =11×12=132
Sum of next 7 numbers =10×7=70
∴ Last number =240−(132+70)=240−202=38
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