**Download Unitary Method Worksheet Grade 4**

**Q.1) If the cost of 9 oranges is ₹ 180, find the cost of 12 such oranges?**

a) ₹ 240

b) ₹ 260

c) ₹ 220

**Q.2) If the cost of 6 mangoes is ₹ 48, find the cost of 8 such mangoes?**

a) ₹ 64

b) ₹ 72

c) ₹ 56

**Q.3) 8 women can reap a field in 18 days, in how many days can 12 women reap the same field?**

a) 18 days

b) 12 days

c) 16 days

**Q.4) 7 horses can graze a field in 12 days. How many horses can graze it in 14 days ?**

a) 8

b) 4

c) 6

**Q.5) If the annual salary of a person is ₹ 18000, then find his salary for 2 months ?**

a) ₹ 3000

b) ₹ 3500

c) ₹ 2500

**Unitary Method Worksheet Grade 4 Explanations**

**Q.1) Explanation – Unitary Method Worksheet Grade 4**

Cost of 9 oranges = ₹ 180

Cost of 1 orange = ₹ 180/9

= ₹ 20

Cost of 12 oranges = ₹ ( 20 x 12 )

= ₹ 240

Hence, the cost of 12 oranges is ₹ 240

**Correct Answer – a) ₹ 240**

**Q.2) Explanation – **

Cost of 6 mangoes = ₹ 48

Cost of 1 mango = ₹ 48/6

= ₹ 8

Cost of 8 mangoes = ₹ ( 8 x 8 )

= ₹ 64

Hence, the cost of 8 mangoes is ₹ 64

**Correct Answer – a) ₹ 64**

**Q.3) Explanation – Unitary Method Worksheet Grade 4**

Clearly, less women will take the more days.

And, more women will take less days.

8 women can reap a field in = 18 days

1 woman can reap a field in = ( 18 x 8 ) days

Hence, 12 women can reap a field in = (180 x 8)/12 days = 12 days

Hence, 12 women can reap a field in 12 days

**Correct Answer – b) 12 days**

**Q.4) Explanation – Unitary Method Worksheet Grade 4**

For 12 days field can be grazed by 7 horses

For 1 day field can be grazed by ( 7 x 12 ) horses

For 14 days field can be grazed by (7 x 12)/14 horses

= 6 horses

Hence, 6 horses can grazed it in 14 days

**Correct Answer – c) 6**

**Q.5) Explanation – Unitary Method Worksheet Grade 4**

Annual salary means salary for 12 months

Salary for 12 months = ₹ 18000

Salary for 1 months = ₹ 18000/12

Salary for 2 months = ₹ (18000 x 2)/12

Salary for 2 months = ₹ 18000/6

Salary for 2 months = ₹ 3000

**Correct Answer – a) ₹ 3000**