Examples for 8th grade - page 6
- Compare II
Which of the numbers 158, 815 is greater? - Tunnels
Mice had built an underground house consisting of chambers and tunnels: • each tunnel leading from the chamber to the chamber (none is blind) • from each chamber lead just three tunnels into three distinct chambers, • from each chamber mice can get to any - Area codes
How many 6 digit area codes are possible if the first number can't be zero? - Accidents
The count of accidents in 1993 caused 8009 women which is 7.1%. How many men caused the accidents? - Ravens
The tale of the Seven Ravens were seven brothers, each of whom was born exactly 1.5 years after the previous one. When the eldest of the brothers was 4-times older than the youngest, mother all curse. How old was seven ravens brothers when their mother cur - Madams
During the spring cleaning ladies going to wash windows. Mother takes wash all the windows 5 hours, the grandmother 3 times longer and Paula wash all windows in 5 hours. How many hours will spend washing the windows this "women's team" if working togethe - 2nd class variations
From how many elements you can create 6480 variations of the second class? - ABS
What is the value of ? ? - Radius
Determine the radius of the circle, if its perimeter and area is the same number. - Circle chord
What is the length d of the chord circle of diameter 58 mm, if distance from the center circle is 24 mm? - Kites
Boys run kite on a cable of 86 meters long. What is the kite altitude, if the angle from the horizontal plane is 77°? - Number
What number is 24 % smaller than the number 51? - Acreage
What acreage has a rectangular plot whose diagonal is 34 meters long and one side has a length of 16 meters. ? - Garden
Father dig up the garden in 13 hours. Son in 18 hours. How many hours take dig up the garden together? - Excavation
Mr. Radoslav calculated that excavation for a water connection dig for 10 days. His friend would take 7 days. Radoslav worked 3 days alone. Then his friend came to help and started on the other end. On what day since the beginning of excavation they met? - River
Calculate how many promiles river Hudson average falls, if on section long 921 km flowing water from 1224 m AMSL to 154 m AMSL. - Gauss
Help little C.F. Gauss sum all the integers from 1 to 340. - Powers
Is true for any number a,b,c,d equality:? ? - Shadow and light
Nine meters height poplar tree has a shadow 16.2 meters long. How long shadow have at the same time Joe if he is 1,4m tall? - Two workers
Two workers together execute some work in 10 days. The first worker would have done himself in 20 days. How many days would have done himself a second worker?
Which of the numbers 158, 815 is greater?
Mice had built an underground house consisting of chambers and tunnels: • each tunnel leading from the chamber to the chamber (none is blind) • from each chamber lead just three tunnels into three distinct chambers, • from each chamber mice can get to any
How many 6 digit area codes are possible if the first number can't be zero?
The count of accidents in 1993 caused 8009 women which is 7.1%. How many men caused the accidents?
The tale of the Seven Ravens were seven brothers, each of whom was born exactly 1.5 years after the previous one. When the eldest of the brothers was 4-times older than the youngest, mother all curse. How old was seven ravens brothers when their mother cur
During the spring cleaning ladies going to wash windows. Mother takes wash all the windows 5 hours, the grandmother 3 times longer and Paula wash all windows in 5 hours. How many hours will spend washing the windows this "women's team" if working togethe
From how many elements you can create 6480 variations of the second class?
What is the value of ? ?
Determine the radius of the circle, if its perimeter and area is the same number.
What is the length d of the chord circle of diameter 58 mm, if distance from the center circle is 24 mm?
Boys run kite on a cable of 86 meters long. What is the kite altitude, if the angle from the horizontal plane is 77°?
What number is 24 % smaller than the number 51?
What acreage has a rectangular plot whose diagonal is 34 meters long and one side has a length of 16 meters. ?
Father dig up the garden in 13 hours. Son in 18 hours. How many hours take dig up the garden together?
Mr. Radoslav calculated that excavation for a water connection dig for 10 days. His friend would take 7 days. Radoslav worked 3 days alone. Then his friend came to help and started on the other end. On what day since the beginning of excavation they met?
Calculate how many promiles river Hudson average falls, if on section long 921 km flowing water from 1224 m AMSL to 154 m AMSL.
Help little C.F. Gauss sum all the integers from 1 to 340.
Is true for any number a,b,c,d equality:? ?
Nine meters height poplar tree has a shadow 16.2 meters long. How long shadow have at the same time Joe if he is 1,4m tall?
Two workers together execute some work in 10 days. The first worker would have done himself in 20 days. How many days would have done himself a second worker?- «
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