Exercise 5.4 - Chapter 5 - Money - Term 3 - 4th Maths Guide Samacheer Kalvi Solutions

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$\mathbf{E x} 5.4$
Question $1 .$
Priya bought 20 balloons. If the cost of one balloon is $₹ 6$, then find the cost of 20 balloons.
Answer:
Cost of one ballon $=₹ 6$
Cost of 20 ballon $=20 \times 6$
$=₹ 120$

Question $2 .$
Chinthamani bought 28 chocolate for her birthday. If the cost of a chocolate is $₹ 7$ then find the total cost of 28 chocolates
Answer:
cost of a chocolate $=₹ 7$
cost of 28 chocolates $=28 \times 7$
$=₹ 196$
₹ 7

 

Question $3 .$
Ashok purchased 9 decorative papers at the cost of $₹ 450$ for his town festival. Find the cost of a decorative paper?
Answer:
cost of 9 decorative papers $=₹ 450$
cost of 1 decorative paper $=450 \div 9$

= ₹ 50

Question $4 .$
Geethanjali bought 10 pencils at the cost of $₹ 70$ from the supermarket. Find the cost of a pencil?
Answer:
cost of 10 pencils $=₹ 70$
cost of 1 pencil $=70 \div 10$
$₹ 70$

Question $5 .$
Kuppan bought pencil and pen for $₹ 24.50$ and $₹ 6.50$ from his total amount $₹ 50$. Find the total cost of things that he bought. Also find the balance amount?
Answer:
Price of a pencil $=₹ 24.50$
Price of a pen $=₹ 6.50$
Sum $=₹ 24.50+₹ 6.50$
$=₹ 31.00$
Total amount $=₹ 50.00$
Sum $=₹ 31.00$
$=₹ 50.00+₹ 31.00$
$=₹ 19.00$

Question $6 .$
A teacher went to the science exhibition with their student. The entry fee is $₹ 250$ and the teacher bought some materials for the school for $₹ 320$, she had the balance amount of $₹ 330$, find the amount that she had?
Answer:
Entry fee $=₹ 250$
Things $=₹ 320$
Balance $=₹ 330$
Amount $=₹ 250+₹ 320+₹ 330$
$=₹ 900$