Grades 3-4 Video Solutions 2012-2012_3-4

Video Transcription

Problem number 16. At a Christmas party, there was exactly one candlestick on each of the 15 tables.  There were 6 5-branched candlesticks, and the rest of them were 3-branched candlesticks. How many candles had to be bought for all the candlesticks?  So, we see that there are 6 5-branched candlesticks, and then the rest of them are 3-branched candlesticks.  To find how many 3-branched candlesticks there are, we will have to do 15 minus 6, which is 9. So, there are 9 3-branched candlesticks and 6 5-branched candlesticks.  In order to find how many candles needed to be bought, we are going to multiply the number of candlesticks by how many candles you are able to put in them.  And the number of branches is how many candles you can put in each one.  So, for 3-branched candlesticks, it will be 9 times 3, because there are 9 of these and they each hold 3 candles. 9 times 3 is 27, and then 6 times 5 is 30.  And then, if we add these together, we see that there are 57 candles, because 20 plus 30 is 50, and then we have a 7, which equals 57, which means our answer is C, 57.

Video Summary

At a Christmas party with 15 tables, each had a candlestick. There were 6 candlesticks with 5 branches each, and the remaining 9 were 3-branched. To determine the total number of candles needed, multiply the number of candlesticks by their respective branches. For the 3-branched candlesticks: 9 × 3 = 27 candles, and for the 5-branched candlesticks: 6 × 5 = 30 candles. Adding these gives a total of 57 candles. Thus, 57 candles had to be purchased.

Keywords

Christmas party

candlesticks

branches

candles

purchase