Unitary Method Questions For Class 4, In Unitary Method we first find the value of one unit and then find the value of required number of units.

### Unitary Method Questions For Class 4

**Question 1**

If the cost of 5 apples is ₹ 75, find the cost of 7 such apples?

**Explanation**

Cost of 5 apples = ₹ 75

Cost of 1 apple = ₹ 75/5

Cost of 1 apple = ₹ 15

Cost of 7 apples = ₹ ( 15 x 7 )

Cost of 7 apples = ₹ 105

Hence, the cost of 7 apples is ₹ 105

**Question 2**

10 men can reap a field in 15 days, in how many days can 25 men reap the same field?

**Explanation**

Clearly, less men will take the more days.

And, more men will take less days.

10 men can reap a field in = 15 days

1 man can reap a field in = ( 15 x 10 ) days

Hence, 25 men can reap a field in = (15 x 10)/25 days = 6 days

Hence, 25 men can reap a field in 6 days

**Question 3**

12 sheeps can graze a field in 24 days. How many sheeps can graze it in 8 days?

**Explanation**

In 24 days field can be grazed by 12 sheeps

In 1 day field can be grazed by ( 12 x 24 ) sheeps

In 8 days field can be grazed by (12 x 24)/8 sheeps

= 36 sheeps

Hence, 36 sheeps can grazed it in 8 days

**Question 4**

If the annual salary of a person is ₹ 12000, then find his salary for 3months??

**Explanation**

Annual salary means salary for 12 months

Salary for 12 months = ₹ 12000

Salary for 1 months = ₹ 12000/12

Salary for 3 months = ₹ (12000 x 3)/12

Salary for 3 months = ₹ 12000/4

Salary for 3 months = ₹ 3000