Zoho Averages Quiz 1

\frac{\text{Sum of Observations}}{\text{Total Number of Observations}}

\frac{23+27+36+45+12+37}{6} = \frac{180}{6} = 30

Average after 7th match = \frac{6 \times 12 +33} = 15

Average of first n natural number = \frac{n+1}{2} = \frac{17+1}{2} = \frac{18}{2} = 9

New Average = \frac{7 \times 32 - 24 +10}{7} = 30

Average of squares of first n numbers = \frac{(n+1)(2n+1)}{6} 

Average of squares of first 7 numbers = \frac{(7+1)(2\times 7+1)}{6} = 20

New Average = 32 + 1 = 33

Weight of new one = 33 \times 5 - 32\times 4 = 165 - 128 = 37[/latex] kg

Required runs = 11 \times 15 - 10\times 15 = 15

Price of 10 toys = 300 x 25 = 7500

Price of 5 toys = 100 x 15 = 1500

Average cost of one toy = \frac{7500 + 1500}{25+15} = 225

3 Soaps at other prices price is not given

Inadequate data

Average after 13th innings = \frac{12 \times 20 + 33}{13} = 21