Question

За 4 одинаковые свечи заплатили 20 рублей. сколько таких свечей можно купить на 10 рублей, на 30 рублей?

Answer 1

1)20:4=5(руб)-цена свечи.
2)10:5=2(свечи)-можно купить на 10 рублей.
3)30:5=6(свечей)-можно купить на 30 рублей.

Answer 2

20:4=5 р. стоит одна свечка
10:5=2 свечки можно купить на 10 рублей
30:5=6 свечек можно купить на 30 рублей

Answer 3

Calculating the Number of Candles

To calculate the number of candles that can be bought for 10 rubles and 30 rubles, we can use the information provided.

Given: - 4 identical candles cost 20 rubles.

To find: 1. How many candles can be bought for 10 rubles? 2. How many candles can be bought for 30 rubles?

Calculations

1. Number of Candles for 10 Rubles: - To find the number of candles that can be bought for 10 rubles, we can use the unitary method. - If 4 candles cost 20 rubles, then 1 candle costs 20 / 4 = 5 rubles. - Therefore, for 10 rubles, the number of candles that can be bought is 10 / 5 = 2 candles.

2. Number of Candles for 30 Rubles: - Similarly, for 30 rubles, the number of candles that can be bought is 30 / 5 = 6 candles.

Conclusion

- For 10 rubles, you can buy 2 candles. - For 30 rubles, you can buy 6 candles.