Examples for secondary school students

Number of problems found: 2059

  • School trip
    hostel_1 The class has 19 students. What different ways students can be accommodated in the hostel, where available 3× 2-bed, 3× 3-bed and 1× 4-bed rooms. (Each room has its unique number)
  • Lunch
    skola_15 Seven classmates go every day for lunch. If they always come to the front in a different order, will be enough school year to take of all the possibilities?
  • Harmonic HM example
    mean_normal_1 Harmonic means of 4 and 8.
  • Exp
    old_calculator If ?, then n is:
  • Fraction
    polynomial For what x expression ? equals zero?
  • Asymptote
    asymptote What is the vertical asymptote of ?
  • Find next member
    sequence_geo Find x if the numbers from a GP 7, 49, x.
  • Discriminant
    Quadratic_equation_discriminant Determine the discriminant of the equation: ?
  • Hexagonal pyramid
    hexagonal-pyramid The base of the pyramid is a regular hexagon, which can be circumscribed in a circle with a radius of 1 meter. Calculate the volume of a pyramid 2.5 meters high.
  • Component fail
    matica There is a 90 percent chance that a particular type of component will perform adequately under high temperature conditions. If the device involved has four such components, determine the probability that the device is inoperable because exactly one of the
  • Equation
    cubic How many real roots has equation ? ?
  • Logarithm
    log_hat Determine the number whose decimal logarithm is -3.8.
  • Null points
    absolute value Calculate the roots of the equation: ?
  • Diagonals
    diagonals_1 What x-gon has 54 diagonals?
  • Pizza
    pizza_1 A school survey found that 12 out of 15 students like pizza. If 6 students are chosen at random, what is the probability that all 6 students like pizza?
  • To the cinema
    tree Jane at 8 am got message that all 1093 school pupils will go to the cinema. Within 20 min she said it to the three friends. Each of them again for 20 minutes said to the other three. In this way the message spread further. At what time all the children in
  • Series and sequences
    seq_sum Find a fraction equivalent to the recurring decimal? 0.435643564356
  • ABS
    sphere_nice What is the value of ? ?
  • Power
    power Number ?. Find the value of x.
  • N-gon
    ngon How many diagonals has convex 11-gon?

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