Ratio - 9th grade (14y) - math problems

Number of problems found: 330

  • Sharing money
    penize A certain sum of money is shared in the ratio 2 :3:9. If the difference between the first and the second is $40, then the amount of money shared is
  • Gas prices 2021
    gasprom According to the SPP price list in 2021, the price of natural gas together with its supply is as follows: D1 - we cook. Fix 3.34 euros/month and 0.0479 euros/kWh (1 cubic meter of gas is approximately 10.555 kWh. It is called combustion heat and changes o
  • Two numbers
    eq1 One number is by 79 larger than the other. If we divide the larger number by the smaller one, we get the ratio 5 and the remainder 11. Determine both numbers.
  • Colorado
    Colorado The state Colorado has the shape of a rectangle. The map is sold on 2 posters. The first has dimensions of 70 cm and 50 cm in a scale of 1: 1,000,000. The second poster has dimensions of 175 cm and 125 cm. What is the scale of the second poster?
  • Three animals
    cow Ramrao bought a cow, a buffalo and an ox for a total of rs 85,000. if the ratio of price of cow, buffalo and ox is 4: 8: 5, then what is the price of ox?
  • Salt solution
    Salt-Sodium-Chloride-NaCl Calculate the weight of a 50% salt solution that we prepare from 120 g of salt.
  • The ratio 4
    ratios2 The ratio of two number is 5:4 if 40% of the first number is 12, what will be 50% of the second number?
  • Two fifth
    factory_butter Two fifth of the worker in a factory are men. The rest are women. If there 28 men . how many more women than men are there?
  • The ratio 3
    skola The ratio of male pupils to female pupils in Gymnasium is 7:9. If there are 512 pupils, how many pupils are male?
  • Boys and girls 8
    boy In a class of 35 boys and girls that has a ratio of 2:5, 5 boys are absent and 5 boys are present. How many students are present?
  • Boys and girls
    skola If the ratio of male & female teachers is 2/5 & it is in proportion of the male & female students, how many are girls if there are 42 boys?
  • Tyreek
    friends4 Tyreek, Antuan and Alex are given a total of $3500 to be shared among themselves in the ratio 3:5:12. How much each get money?
  • Centre of the hypotenuse
    rt_triangle For the interior angles of the triangle ABC, alpha beta and gamma are in a ratio of 1: 2: 3. The longest side of the AB triangle is 30 cm long. Calculate the perimeter of the triangle CBS if S is the center of the side AB.
  • Center of gravity and median
    rr_triangle2 In the isosceles triangle ABC, the center of gravity T is 2 cm from the base AB. The median parallel to the AB side measures 4 cm. What is the area of the ABC triangle?
  • MIT 1869
    1896_VS_RT You know the length of hypotenuse parts 9 and 16, at which the hypotenuse of a right triangle is divided by a perpendicular running from its opposite vertex. The task is to find the lengths of the sides of the triangle and the length of the line x. This a
  • Calculate
    triangle_ssh Calculate the area of triangle ABC, if given by alpha = 49°, beta = 31°, and the height on the c side is 9cm.
  • The truncated
    truncated_cone The truncated rotating cone has bases with radii r1 = 8 cm, r2 = 4 cm and height v = 5 cm. What is the volume of the cone from which the truncated cone originated?
  • The diamond
    koso The diamond has an area S = 120 cm2, the ratio of the length of its diagonals is e: f = 5: 12. Find the lengths of the side and the height of this diamond.
  • Two cables
    pole On a flat plain, 2 columns are erected vertically upwards. One is 7 m high and the other 4 m. Cables are stretched between the top of one column and the foot of the other column. At what height will the cables cross? Assume that the cables do not sag.
  • The inheritance
    mince Dad originally decided to bequeath the money to his two sons so that they would share it 8: 7 (older and younger). Then he changed his mind and divided the same amount in the ratio 11: 9 (older and younger). This increased the value of the inheritance for

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