Unit Test (Solutions): The Dairy Farm | Mathematics (Maths Mela) Class 5 - New NCERT PDF Download

Time: 1 hour

M.M. 30

Attempt all questions.

• Question numbers 1 to 5 carry 1 mark each.
• Question numbers 6 to 8 carry 2 marks each.
• Question numbers 9 to 11 carry 3 marks each.
• Question number 12 & 13 carry 5 marks each

Q1. What is 325 × 4?​ (1 Mark)
a) 1200
b) 1300
c) 1400
d) 1500
Ans:b) 1300

325 × 4 = 1300

Q2. A shopkeeper sells 48 pencils in one day. How many pencils will he sell in 15 days?​ (1 Mark)
a) 680
b) 720
c) 740
d) 800
Ans: b) 720

Number of pencils sold in 1 days = 48

Number of pencils sold in 15 days = 48 × 15

Q3. Which of the following equals 25 × 12?​ (1 Mark)
a) 300
b) 250
c) 275
d) 325
Ans: a) 300

25 × 12 = 300

Q4. If one packet contains 24 chocolates, how many chocolates will 36 packets contain?​ (1 Mark)
a) 864
b) 744
c) 960
d) 812
Ans: a) 864

Number of chocolates in one pack = 24 chocolates

Number of chocolates = 24 × 36

Q5. Which statement is correct?​ (1 Mark)
a) 65 × 10 = 650
b) 65 × 100 = 650
c) 65 × 0 = 65
d) 65 × 1 = 0
Ans: a) 65 × 10 = 650

Q6: Multiply the following using nearest multiple:​ (2 Marks)

a)  6 × 19 
b) 8 × 29
c) 7 × 49

Sol: 
​a)  6 × 19
= 6 × 20 – 6
= 120 – 6
= 114

b) 8 × 29
= 8 × 30 – 8
= 240 – 8
= 232

c) 7 × 49
= 7 × 50 – 7
= 350 – 7
= 343

Q7: Solve the following: (2 Marks)
a) 7 × 10 = ___
b) 30 × 10 = ___
c) 50 × 40 = ___
d) 60 × 10 = ___
e) 25 × 100 = ___
f) 90 × 10 = ___

​Sol: 

​a) 7 × 10 = 70
b) 30 × 10 = 300
c) 50 × 40 = 2000
d) 60 × 10 = 600
e) 25 × 100 = 2500

f) 90 × 10 = 900

Q8: Find the product by halving and doubling either the multiplier or the multiplicand. (2 Marks)

(a) 25 × 16

(b) 45 × 18

(c) 32 × 35
Sol: 

(a) 25 × 16
​Halve 16 → 8, Double 25 → 50
Now: 50 × 8 = 400

(b) 45 × 18
Halve 18 → 9, Double 45 → 90
Now: 90 × 9 = 810

(c) 32 × 35
​Halve 32 → 16, Double 35 → 70
Now: 16 × 70 = 1120

Q9: Find the productof the following  (2 Marks)

(i) (ii) (iii)

Sol:

(i)

(ii)

(iii) 

Q10. A printing press prints 2,450 newspapers daily. How many newspapers are printed in 125 days? (2 Marks)

Sol:

Newspapers printed in 1 day = 2,450
Number of days = 125
Total newspapers = 2,450 × 125 = 3,06,250

The press prints 3,06,250 newspapers in 125 days.

Q11. A school has 42 classrooms. Each classroom has 68 desks. How many desks are there in the school? (2 Marks)

Sol:

Number of classrooms = 42
Desks in each classroom = 68
Total desks = 42 × 68 = 2,856

There are 2,856 desks in the school.

Q12. A factory packs 625 bottles in a carton. How many bottles are there in 480 cartons? (5 Marks)

Sol:

Bottles in 1 carton = 625
Number of cartons = 480
Total bottles = 625 × 480 = 3,00,000

There are 3,00,000 bottles in 480 cartons.

Q13. A farmer harvested 1,250 apples from each tree. If he has 240 trees, how many apples did he harvest in total?  (5 Marks)

Sol:

Apples on 1 tree = 1,250
Number of trees = 240
Total apples = 1,250 × 240 = 3,00,000

The farmer harvested 3,00,000 apples.