Question

РЕШЕНИЕ И СХЕМА У БРАТА 9 МОНЕТ ПО 2 РУБЛЯ А У СЕСТРЫ 4 МОНЕТЫ ПО 5 РУБЛЕЙ. У КОГО ДЕНЕГ БОЛЬШЕ И НАСКОЛЬКО

Answer 1

1) 9*2=18(руб.)-у брата;
2) 4*5=20(руб.)-у сестры.
Больше денег у сестры.

Answer 2

Solution and Calculation

To solve this problem, we need to calculate the total amount of money each sibling has based on the number of coins and their respective values.

Let's start by calculating the total amount of money the brother has. He has 9 coins, and each coin is worth 2 rubles. Therefore, the total amount of money the brother has is:

Total amount for brother = 9 * 2 = 18 rubles.

Now, let's calculate the total amount of money the sister has. She has 4 coins, and each coin is worth 5 rubles. Therefore, the total amount of money the sister has is:

Total amount for sister = 4 * 5 = 20 rubles.

Comparison

So, the sister has 20 rubles and the brother has 18 rubles.

Conclusion

Therefore, the sister has more money by 2 rubles.