Unitary Method Worksheet
The method (Go through one): Find the value of one: divide. Multiply by the number you need. Inverse (more workers → fewer days): multiply first to find the total work, then divide.
NameDateTime takenScore ___ / 40
- 1.10 painters can paint a school in 20 days. How many days would 4 painters take, working at the same speed?
- 2.7 painters can paint a school in 10 days. How many days would 10 painters take, working at the same speed?
- 3.If 4 kg of rice costs ₹108, how many kg can you buy for ₹189?
- 4.3 painters can paint a school in 6 days. How many days would 6 painters take, working at the same speed?
- 5.A hostel has enough food for 3 students for 26 days. How many days will the same food last for 2 students?
- 6.If 9 pencil boxes cost ₹171, how much do 8 pencil boxes cost (in ₹)?
- 7.If 7 kg of rice costs ₹413, how many kg can you buy for ₹885?
- 8.A hostel has enough food for 8 students for 6 days. How many days will the same food last for 16 students?
- 9.If 2 pencil boxes cost ₹40, how much do 12 pencil boxes cost (in ₹)?
- 10.8 painters can paint a school in 10 days. How many days would 2 painters take, working at the same speed?
- 11.A car goes 264 km on 11 litres of petrol. How far can it go on 14 litres (in km)?
- 12.6 painters can paint a school in 29 days. How many days would 3 painters take, working at the same speed?
- 13.A hostel has enough food for 3 students for 13 days. How many days will the same food last for 13 students?
- 14.A car goes 209 km on 11 litres of petrol. How far can it go on 12 litres (in km)?
- 15.A car goes 99 km on 9 litres of petrol. How far can it go on 13 litres (in km)?
- 16.A hostel has enough food for 10 students for 4 days. How many days will the same food last for 5 students?
- 17.A car goes 198 km on 9 litres of petrol. How far can it go on 5 litres (in km)?
- 18.7 painters can paint a school in 20 days. How many days would 14 painters take, working at the same speed?
- 19.5 painters can paint a school in 8 days. How many days would 8 painters take, working at the same speed?
- 20.7 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
- 21.If 6 erasers cost ₹30, how much do 17 erasers cost (in ₹)?
- 22.A car goes 168 km on 12 litres of petrol. How far can it go on 26 litres (in km)?
- 23.5 painters can paint a school in 4 days. How many days would 10 painters take, working at the same speed?
- 24.A car goes 120 km on 5 litres of petrol. How far can it go on 24 litres (in km)?
- 25.A car goes 100 km on 5 litres of petrol. How far can it go on 13 litres (in km)?
- 26.A car goes 198 km on 11 litres of petrol. How far can it go on 10 litres (in km)?
- 27.If 3 mangoes cost ₹66, how much do 15 mangoes cost (in ₹)?
- 28.A car goes 110 km on 10 litres of petrol. How far can it go on 17 litres (in km)?
- 29.A car goes 108 km on 6 litres of petrol. How far can it go on 20 litres (in km)?
- 30.If 7 pens cost ₹350, how much do 15 pens cost (in ₹)?
- 31.10 painters can paint a school in 16 days. How many days would 8 painters take, working at the same speed?
- 32.If 3 pencil boxes cost ₹144, how much do 7 pencil boxes cost (in ₹)?
- 33.If 5 notebooks cost ₹15, how much do 13 notebooks cost (in ₹)?
- 34.If 4 pencil boxes cost ₹148, how much do 10 pencil boxes cost (in ₹)?
- 35.A hostel has enough food for 4 students for 22 days. How many days will the same food last for 2 students?
- 36.If 7 mangoes cost ₹147, how much do 6 mangoes cost (in ₹)?
- 37.If 2 kg of rice costs ₹146, how many kg can you buy for ₹219?
- 38.A hostel has enough food for 11 students for 30 days. How many days will the same food last for 6 students?
- 39.If 8 kg of rice costs ₹248, how many kg can you buy for ₹62?
- 40.If 2 kg of rice costs ₹94, how many kg can you buy for ₹141?
Answer key
- 50
- 7
- 7
- 3
- 39
- 152
- 15
- 3
- 240
- 40
- 336
- 58
- 3
- 228
- 143
- 8
- 110
- 10
- 5
- 7
- 85
- 364
- 2
- 576
- 260
- 180
- 330
- 187
- 360
- 750
- 20
- 336
- 39
- 370
- 44
- 126
- 3
- 55
- 2
- 3
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