Page 50 - Math 4

Fundamental Operations Fundamental Operations

11. a) There are 30 eggs in a crate of eggs. Find the number of eggs in 10 crates.
b) 1 dozen of pencils is equal to 12 pencils. How many pencils are there in
12 dozens of pencils?

c) A box has 20 packets of table tennis balls and each packet contains a
dozen of balls. How many balls are there in the box?

d) There are 32 students in grade IV. Each of them donated Rs 150 to the
flood and landslide victim people. How much was the total of donation
amount.
e) The monthly salary of Mrs. Tamang is Rs 16,250. Calculate her salary in
1 year.

12. a) 1 quintal of weight is equal to 100 kg. How many kilograms (kg) are
there in 50 quintals of weight?

b) 1 metric ton of weight is equal to 1000 kg. How many kilograms are
there in 7 metric tons of weight?
c) A bottle can hold 630 millilitres (ml) of liquid. How much liquid do
18 such bottles hold?

d) A packet of 500 ml of milk gives 17 g of protein. If you drink 18 packets
of milk in a month, how much protein do you get?

e) We get roughly 72 calories from 1 boiled egg. How much calories do we
get from 30 boiled eggs?
f) A water tanker full of water carries 7,500 litres of water in one trip.
How much water does it carry in 20 trips?

g) The distance between your home and your school is 8 km. How many
kilometres do you travel in 15 days?
h) The distance between place A and place B is 32 km. A bus carries
passengers from A to B and B to A 7/7 times everyday. How many
kilometres does the bus travel in a day?

i) A bus can travel 55 km in 1 hour. How many kilometres does it travel in
24 hours?

13. a) There are 7 days in one week. How many days are there in 52 weeks?
b) There are 12 months in one year. How many months are there in
12 years?

c) There are 365 days in one year. How many days are there in 15 years?
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vedanta Excel in Mathematics - Book 4 48 Approved by Curriculum Development Centre, Sanothimi, Bhaktapur
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