Page 40 - Math 4

Fundamental Operations Fundamental Operations

d) The total population of a village is 60,550. Among them 25,460 are
men, 24,390 are women and the rest are children. Find the population
of the children.
Solution

Population of men = Total population =
+ –
Population of women = Population of men and women =
Population of men and women = Population of children =

e) A fruit seller bought 548 kg of fruits. She bought 165 kg of avocados,
180 kg of oranges, and the rest is apples. How many kilograms of apples
did she buy?

11. a) A shopkeeper bought a mobile for Rs 6,230. He sold it for
Rs 7,155. How much profit did he make?
Solution

Selling price of the mobile =
Buying price of the mobile =

Profit =
b) Mr. Shrestha bought a bicycle for Rs 9,450. He sold it for Rs 10,300.
How much profit did he make?

12. a) There are 178 more girls than boys in a school. There are 456 boys in
the school.

(i) Find the number of girls in the school.

(ii) Find the total number of students in the school.

–
b) There are 178 more girls than boys in a school. There are 634 girls in
the school.

(i) Find the number of boys in the school.

(ii) Find the total number of students in the school.

c) Mrs. Subba paid Rs 1,250 more for a jacket than a trouser. She paid
Rs 1,785 for the trouser.
(i) Find the cost of the jacket.

(ii) Find the total cost of these two items.
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