Grade 4 Math: Word problems · Remaining rate

A puzzle has 80 pieces. Dev places 4 pieces per day for the first 5 days. To finish in 10 days, how many pieces per day does Dev need for the next 5 days?

Nina wants to swim 48 laps. Nina swims 6 laps per day for the first 3 days. To finish in 6 days, how many laps per day does Nina need for the next 3 days?

Mila is reading a novel with 70 pages. Mila reads 2 pages per day for the first 5 days. To finish the whole novel in 10 days, how many pages per day does Mila need for the next 5 days?

Anika wants to swim 36 laps. Anika swims 4 laps per day for the first 3 days. To finish in 6 days, how many laps per day does Anika need for the next 3 days?

Amira is reading a novel with 64 pages. Amira reads 4 pages per day for the first 4 days. To finish the whole novel in 8 days, how many pages per day does Amira need for the next 4 days?

Priya plans to cycle 40 km. Priya cycles 2 km per day for the first 5 days. To finish in 10 days, how many kilometres per day does Priya need for the next 5 days?

Sloane plans to cycle 48 km. Sloane cycles 6 km per day for the first 3 days. To finish in 6 days, how many kilometres per day does Sloane need for the next 3 days?

Lucas plans to cycle 40 km. Lucas cycles 6 km per day for the first 4 days. To finish in 8 days, how many kilometres per day does Lucas need for the next 4 days?

A puzzle has 90 pieces. Ruby places 6 pieces per day for the first 5 days. To finish in 10 days, how many pieces per day does Ruby need for the next 5 days?

Jack wants to swim 40 laps. Jack swims 4 laps per day for the first 4 days. To finish in 8 days, how many laps per day does Jack need for the next 4 days?