Question

Average of five consecutive odd numbers is x and the highest odd number is minimum number in another set of seven consecutive numbers. Find the sum of the five consecutive odd numbers if the average of the seven consecutive numbers is 30

• A. 110
• B. 112
• C. 115
• D. 120

Answer 1

Answer:

C. 115

Let us take five consecutive odd numbers x, x+2, x+4, x+6, x+8 and seven consecutive numbers y, y+1, y+2, y+3, y+4, y+5, y+6 Average of seven consecutive number y+3=30 y=27 Sum of the five consecutive odd numbers = 27+25+23+21+19=115