Math classification

In 3A class are 27 students. One-third got a B in math and the rest got A. How many students received a B in math?

Result

n =  9

Solution:

Solution in text n =







Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




To solve this example are needed these knowledge from mathematics:

Next similar examples:

  1. Chocolate
    choko Children break chocolate first to third and then every part of another half. What kind got each child? Draw a picture. What part would have received if each piece have halved?
  2. Division
    numbers_36 Which number in division 16 give 12 and the rest 3?
  3. President
    gasparovic President of Slovakia earns a monthly € 7844 per month. How many times earn than Jimmy's monther salary € 612? 15.3.2014 the presidential election, which decides who will almost effortlessly 5 years to receive such space salary for nothing;)
  4. Doses
    medicine_spoon_628830 A child is to receive a dose of 0.5 teaspoon of cough medicine every 12 hours. if the bottle contains 60 doses, how many days will the medicine last?
  5. Sweets
    cukrikyyyyyyyyyyyyyyyyy Mom bought box of sweets for their children.Whole package of 100 sweets divided among 4 their children so that each child receives the most and for she remains the least sweets. How many sweets left for mom.
  6. Doctors
    cvach1 In the city operates 171 doctors. The city has 128934 citizens. How many citizens are per one doctor?
  7. The result
    dice_2 How many times I decrease the number 1144 to get the result 22?
  8. Cheaper cars
    vagon State-owned railway company buys 10 air-conditioned coaches for nearly 18 million euros. Calculate how many euros is the equivalent of one seat in the wagon with a capacity of 83 people. How many of used cars at the price 2700 Euros can be buy instead o
  9. On the trip
    skola_17 On the trip were more than 55 children, but less than 65 children. Groups of 7 could be formed, but groups of 8 no. How many children were on a trip?
  10. On the farm
    farm The farm took 221 tons of potatoes from 17 hectares. How many tons of potatoes taken from one hectare?
  11. Crates 2
    crate One crate will hold 50 oranges. If Bob needs to ship 932 oranges, how many crates will he need?
  12. Line
    line_points How many parts of line divide 5 (different) points that lie on it?
  13. Ten pupils
    chewy 10 pupils went to the store. 6 pupils bought lollipops and 9 pupils bought chewing gum. How many pupils have bought both lollipops and chewing gums (if everyone bought something)?
  14. Cake 7
    cake_3 1/3 of a cake shared with 4 people. What share of the whole cake has each people?
  15. Date game
    desk_calendar Let now is Wednesday. What day is after 248 days? Write the result as a number: 1=Monday, 2=Tuesday, 3=Wednesday, 4=Thursday, 5=Friday, 6=Saturday, 7=Sunday?
  16. Addition of Roman numbers
    roman Added together and write as decimal number: XXXIV + MDCCXII
  17. Cages
    guineapig Honza had three cages (black, silver, gold) and three animals (guinea pig, rat and puppy). There was one animal in each cage. The golden cage stood to the left of the black cage. The silver cage stood on the right of the guinea pig cage. The rat was in the