Question

Q.9
Word problems:
(18 Marks)
a)
A rectangular sheet of paper is 14
cm and 12
cm wide. Find its
perimeter.
b.
A Shopkeeper gains Rs. I on each pen and loses 40 paise on each pencil,
50 pens and 125 pencils. Find his profit or loss.
c.
What's the error?
Ramu evaluated the expression -7- (-3) and came up with the answer -10. What
did Ramu do wrong?
d)
In a class of 40 students,
of the total number of the students like to eat rice
only,
of the total number of students like to eat chapatti only and remaining
student like to eat both. What fraction of the total number of students like to eat
both?
e.
How many - kg boxes of chocolate can be made with 1kg chocolate?
f.
The cost of 5-kg of tomatoes is Rs. 231. At what rate per kg are the tomatoes
being sold?
g.
A car runs 9 km using 1 L of petrol. Ilow much distance will it cover in 3
L of
h.
petrol.
Rama bought 4 kg 350 g tomato, 3 kg 80 g potato and some onion. If the total
weight of the three vegetables is 10 kg 200 g, what is the weight of onion?
i.
Mr. Soni bought some bags of cement each weighting 49.8 kg. If the total weight
of all the bags is 1792.8 kg, how many bags did he buy?​

Answer 1

Answer:

$a)perimeter = 2(l + b) \\ = 2(14 + 12) \\ = 2 \times 26 \\ = 52cm$