Exercise 4.5
method
Read the following stories carefully and solve them.
1. There is 1350 kg of food material in one container, How many kilograms of food will
375 such containers contain?
2. There are 24 hours in one day. How many hours are there in 365 days? Il a year has
365 days, how many hours are there in 100 years?
One textbook costs 786. What is the cost of 2330 copies of the book?
4. One large packet has 200 balloons. How many balloons are there in 250 packets?
One ticket for a movie at the multiplex costs 280. What is the cost of 1250 tickets?
155 oranges are packed into one carton. How many oranges will be packed into
1550 such cartons
% Asha runs 1750 metres every morning. How many metres will she run in 180 days?
& in a school, one pair of sports uniform costs 645. What is the total cost of 5678 pairs
of sports uniform
9.9780 passengers travel from Mumbai to Chennai by train every day. How many
people travel in a year? (Hint: 1 year - 365 days)
10. 32 mugs of water can fill a cylindrical drum. How many mugs of water are required
to fill 30 drums
H TO
ESTIMATING THE PRODUCT
Answers
Step-by-step explanation:
1 container=1350kg
375 container =(375×1350 )kg
=506250
hours i n one day=24
hours in 365 days=(24×365)hr
=8760 hr
1yr=365days
100yrs=(365×100)days
=36500days
1 day=24 hr
36500days=(24×36500 )hr
=876000hr
cost of 1 text=786
cost of 2330 copies =(786×2330)=1831380rs
1 packet=200 balloons
250 packets=(250×200) balloon
=50000 balloon
1 ticket =280
1250 ticket=(1250×280)
=350000
1 carton=155 orange
1550 carton=(155×1550) carton
=240250 orange
1 morning =1750m
180 morning =(180×1750)m
=315000m
1 sport uniform=645
5678 sport uniform=(645×5678)
=3662310rs
1 day=9780pass.
365days=(365×9780)pass.
=3569700pass.
1 drum=32 mugs
30 drums=(30×32)mugs
=960 mugs
1. There is 1350 kg of food material in one container, How many kilograms of food will
375 such containers contain?