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Pinky gold
Questions (3)
1a. A right pyramid on a base 10cm square is 15cm high. Find the volume of the pyramid
b. If the top of the pyramid are removed,
1 answer
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A mother has 7 children. The mean age of the children is 13 years 2 months. If the mother's age is included, the mean age rises
3 answers
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Find x if the mean of the number 13,2x,0,5x and 11 is 9. Also find the range of the set of number
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Answers (1)
Mean age of 7 children=sum of ages of 7 children/7 13 years 2 months=sum of 7 children/7 Sum of ages of 7 children=7×13 years 2 months =91 years 14 months =91 years+1 year 2 months =92 years 2 months Mean age of 7 children +1mother= sum of ages of 7