If a girl jump 820 times in an hour. How many times she jumps in 30 minutes?
If a girl jump 820 times in an hour. How many times she jumps in 30 minutes?
Explanation
1 hour = 820 jumps
30 minutes = (820 ÷ 2) = 410 jumps
1 hour = 820 jumps
30 minutes = (820 ÷ 2) = 410 jumps