Decimals - Objective Type Questions Class 6 Notes | EduRev

Mathematics (Maths) Class 6

Class 6 : Decimals - Objective Type Questions Class 6 Notes | EduRev

 Page 1


 
 
 
 
 
 
Objective Type Questions                                                    page: 7.32 
Mark the correct alternative in each of the following: 
 
1. 3/10 is equal to 
(a) 3.1 
(b) 1.3 
(c) 0.3 
(d) 0.03 
Solution: 
 
The option (c) is correct answer. 
We know that 3/10 = 0.3  
Here the denominator is 10, so we have to mark the decimal where 3 is in the tenth place. 
 
2. 7/100 is equal to 
(a) 7.1 
(b) 7.01 
(c) 0.7 
(d) 0.07 
Solution: 
 
The option (d) is correct answer. 
We know that 7/100 = 0.07 
Here the denominator is 100, so we have to mark the decimal where 7 is in the hundredth place. 
 
3. 4/1000 is equal to 
(a) 0.004 
(b) 0.04 
(c) 0.4 
(d) 4.001 
Solution: 
 
The option (a) is correct answer. 
Here the denominator is 1000, so we have to mark the decimal where 4 is in the thousandth place. 
 
4. The value of 37/10000 is 
(a) 0.0370 
(b) 0.0037 
(c) 0.00037 
(d) 0.000037 
Solution: 
 
The option (b) is correct answer. 
Here the denominator is 10000, so we have to mark the decimal where 3 is in the thousandth place and 7 is in the 
ten-thousandth place. 
 
5. The place value of 5 in 0.04532 is 
(a) 5 
(b) 5/100 
Page 2


 
 
 
 
 
 
Objective Type Questions                                                    page: 7.32 
Mark the correct alternative in each of the following: 
 
1. 3/10 is equal to 
(a) 3.1 
(b) 1.3 
(c) 0.3 
(d) 0.03 
Solution: 
 
The option (c) is correct answer. 
We know that 3/10 = 0.3  
Here the denominator is 10, so we have to mark the decimal where 3 is in the tenth place. 
 
2. 7/100 is equal to 
(a) 7.1 
(b) 7.01 
(c) 0.7 
(d) 0.07 
Solution: 
 
The option (d) is correct answer. 
We know that 7/100 = 0.07 
Here the denominator is 100, so we have to mark the decimal where 7 is in the hundredth place. 
 
3. 4/1000 is equal to 
(a) 0.004 
(b) 0.04 
(c) 0.4 
(d) 4.001 
Solution: 
 
The option (a) is correct answer. 
Here the denominator is 1000, so we have to mark the decimal where 4 is in the thousandth place. 
 
4. The value of 37/10000 is 
(a) 0.0370 
(b) 0.0037 
(c) 0.00037 
(d) 0.000037 
Solution: 
 
The option (b) is correct answer. 
Here the denominator is 10000, so we have to mark the decimal where 3 is in the thousandth place and 7 is in the 
ten-thousandth place. 
 
5. The place value of 5 in 0.04532 is 
(a) 5 
(b) 5/100 
 
 
 
 
 
 
(c) 5/1000 
(d) 5/10000 
Solution: 
 
The option (c) is correct answer. 
We know that 5 is in the thousandth place. 
So we get 0.04532 = 4/100 + 5/1000 + 3/10000 + 2/100000 
 
6. The value of 231/1000 is 
(a) 0.231 
(b) 2.31 
(c) 23.1 
(d) 0.0231 
Solution: 
 
The option (a) is correct answer. 
It can be written as 
231/1000 = (200+30+1)/1000 = 200/1000 + 30/1000 + 1/1000 = 2/10 + 3/100 + 1/1000 
Here we have 2 tenths, 3 hundredths and 1 thousandth. 
Hence, the value of 231/1000 is 0.231. 
 
7. The value of 3 5/1000 is 
(a) 3.5 
(b) 3.05 
(c) 3.005 
(d) 3.0005 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
3 5/1000 = 3 + 5/1000 = 3 + 0.005 = 3.005 
 
8. The value of 3/25 is 
(a) 1.2 
(b) 0.12 
(c) 0.012 
(d) None of these 
Solution: 
 
The option (b) is correct answer. 
It can be written as 
3/25 = (3×4)/ (25×4) = 12/100 = 0.12 
 
9. The value of 2 1/25 is 
(a) 2.4 
(b) 2.25 
(c) 2.04 
(d) 2.40 
Page 3


 
 
 
 
 
 
Objective Type Questions                                                    page: 7.32 
Mark the correct alternative in each of the following: 
 
1. 3/10 is equal to 
(a) 3.1 
(b) 1.3 
(c) 0.3 
(d) 0.03 
Solution: 
 
The option (c) is correct answer. 
We know that 3/10 = 0.3  
Here the denominator is 10, so we have to mark the decimal where 3 is in the tenth place. 
 
2. 7/100 is equal to 
(a) 7.1 
(b) 7.01 
(c) 0.7 
(d) 0.07 
Solution: 
 
The option (d) is correct answer. 
We know that 7/100 = 0.07 
Here the denominator is 100, so we have to mark the decimal where 7 is in the hundredth place. 
 
3. 4/1000 is equal to 
(a) 0.004 
(b) 0.04 
(c) 0.4 
(d) 4.001 
Solution: 
 
The option (a) is correct answer. 
Here the denominator is 1000, so we have to mark the decimal where 4 is in the thousandth place. 
 
4. The value of 37/10000 is 
(a) 0.0370 
(b) 0.0037 
(c) 0.00037 
(d) 0.000037 
Solution: 
 
The option (b) is correct answer. 
Here the denominator is 10000, so we have to mark the decimal where 3 is in the thousandth place and 7 is in the 
ten-thousandth place. 
 
5. The place value of 5 in 0.04532 is 
(a) 5 
(b) 5/100 
 
 
 
 
 
 
(c) 5/1000 
(d) 5/10000 
Solution: 
 
The option (c) is correct answer. 
We know that 5 is in the thousandth place. 
So we get 0.04532 = 4/100 + 5/1000 + 3/10000 + 2/100000 
 
6. The value of 231/1000 is 
(a) 0.231 
(b) 2.31 
(c) 23.1 
(d) 0.0231 
Solution: 
 
The option (a) is correct answer. 
It can be written as 
231/1000 = (200+30+1)/1000 = 200/1000 + 30/1000 + 1/1000 = 2/10 + 3/100 + 1/1000 
Here we have 2 tenths, 3 hundredths and 1 thousandth. 
Hence, the value of 231/1000 is 0.231. 
 
7. The value of 3 5/1000 is 
(a) 3.5 
(b) 3.05 
(c) 3.005 
(d) 3.0005 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
3 5/1000 = 3 + 5/1000 = 3 + 0.005 = 3.005 
 
8. The value of 3/25 is 
(a) 1.2 
(b) 0.12 
(c) 0.012 
(d) None of these 
Solution: 
 
The option (b) is correct answer. 
It can be written as 
3/25 = (3×4)/ (25×4) = 12/100 = 0.12 
 
9. The value of 2 1/25 is 
(a) 2.4 
(b) 2.25 
(c) 2.04 
(d) 2.40 
 
 
 
 
 
 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
2 1/25 = 2 + 1/25 = 2 + (1×4)/ (25×4) = 2 + 4/100 = 2 + 0.04 = 2.04 
 
10. 4 7/8 is equal to 
(a) 4.78 
(b) 4.87 
(c) 4.875 
(d) None of these 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
4 7/8 = 4 + 7/8 = 4 + (7×125)/ (8×125)  
On further calculation 
4 7/8 = 4 + 875/1000 = 4 + 0.875 = 4.875 
 
11. 2+3/10+5/100 is equal to 
(a) 2.305 
(b) 2.3 
(c) 2.35 
(d) 0.235 
Solution: 
 
The option (c) is correct answer. 
We know that 3/10 = 0.3 having denominator as 10, so we need to mark the decimal where 3 is in the tenth place 
5/100= 0.05 having denominator as 100, so we need to mark the decimal where 5 is in the hundredth place 
It can be written as,  
2 + 3/10 + 5/100 = 2+ 0.3 + 0.05 = 2.35 
 
12. 3/100+5/10000 is equal to 
(a) 0.35 
(b) 0.305 
(c) 0.0305 
(d) 0.3005 
Solution: 
 
The option (c) is correct answer. 
We know that 3/100 = 0.03 having denominator 100, so we mark the decimal where 3 is in the hundredth place 
5/10000 = 0.0005 having denominator 10000, so we mark the decimal where 5 is in the ten thousandth place 
It can be written as,  
3/100 + 5/10000 = 0.03 + 0.0005 = 0.0305 
 
13. 1 cm is equal is 
(a) 0.1 m 
(b) 0.01 m 
Page 4


 
 
 
 
 
 
Objective Type Questions                                                    page: 7.32 
Mark the correct alternative in each of the following: 
 
1. 3/10 is equal to 
(a) 3.1 
(b) 1.3 
(c) 0.3 
(d) 0.03 
Solution: 
 
The option (c) is correct answer. 
We know that 3/10 = 0.3  
Here the denominator is 10, so we have to mark the decimal where 3 is in the tenth place. 
 
2. 7/100 is equal to 
(a) 7.1 
(b) 7.01 
(c) 0.7 
(d) 0.07 
Solution: 
 
The option (d) is correct answer. 
We know that 7/100 = 0.07 
Here the denominator is 100, so we have to mark the decimal where 7 is in the hundredth place. 
 
3. 4/1000 is equal to 
(a) 0.004 
(b) 0.04 
(c) 0.4 
(d) 4.001 
Solution: 
 
The option (a) is correct answer. 
Here the denominator is 1000, so we have to mark the decimal where 4 is in the thousandth place. 
 
4. The value of 37/10000 is 
(a) 0.0370 
(b) 0.0037 
(c) 0.00037 
(d) 0.000037 
Solution: 
 
The option (b) is correct answer. 
Here the denominator is 10000, so we have to mark the decimal where 3 is in the thousandth place and 7 is in the 
ten-thousandth place. 
 
5. The place value of 5 in 0.04532 is 
(a) 5 
(b) 5/100 
 
 
 
 
 
 
(c) 5/1000 
(d) 5/10000 
Solution: 
 
The option (c) is correct answer. 
We know that 5 is in the thousandth place. 
So we get 0.04532 = 4/100 + 5/1000 + 3/10000 + 2/100000 
 
6. The value of 231/1000 is 
(a) 0.231 
(b) 2.31 
(c) 23.1 
(d) 0.0231 
Solution: 
 
The option (a) is correct answer. 
It can be written as 
231/1000 = (200+30+1)/1000 = 200/1000 + 30/1000 + 1/1000 = 2/10 + 3/100 + 1/1000 
Here we have 2 tenths, 3 hundredths and 1 thousandth. 
Hence, the value of 231/1000 is 0.231. 
 
7. The value of 3 5/1000 is 
(a) 3.5 
(b) 3.05 
(c) 3.005 
(d) 3.0005 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
3 5/1000 = 3 + 5/1000 = 3 + 0.005 = 3.005 
 
8. The value of 3/25 is 
(a) 1.2 
(b) 0.12 
(c) 0.012 
(d) None of these 
Solution: 
 
The option (b) is correct answer. 
It can be written as 
3/25 = (3×4)/ (25×4) = 12/100 = 0.12 
 
9. The value of 2 1/25 is 
(a) 2.4 
(b) 2.25 
(c) 2.04 
(d) 2.40 
 
 
 
 
 
 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
2 1/25 = 2 + 1/25 = 2 + (1×4)/ (25×4) = 2 + 4/100 = 2 + 0.04 = 2.04 
 
10. 4 7/8 is equal to 
(a) 4.78 
(b) 4.87 
(c) 4.875 
(d) None of these 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
4 7/8 = 4 + 7/8 = 4 + (7×125)/ (8×125)  
On further calculation 
4 7/8 = 4 + 875/1000 = 4 + 0.875 = 4.875 
 
11. 2+3/10+5/100 is equal to 
(a) 2.305 
(b) 2.3 
(c) 2.35 
(d) 0.235 
Solution: 
 
The option (c) is correct answer. 
We know that 3/10 = 0.3 having denominator as 10, so we need to mark the decimal where 3 is in the tenth place 
5/100= 0.05 having denominator as 100, so we need to mark the decimal where 5 is in the hundredth place 
It can be written as,  
2 + 3/10 + 5/100 = 2+ 0.3 + 0.05 = 2.35 
 
12. 3/100+5/10000 is equal to 
(a) 0.35 
(b) 0.305 
(c) 0.0305 
(d) 0.3005 
Solution: 
 
The option (c) is correct answer. 
We know that 3/100 = 0.03 having denominator 100, so we mark the decimal where 3 is in the hundredth place 
5/10000 = 0.0005 having denominator 10000, so we mark the decimal where 5 is in the ten thousandth place 
It can be written as,  
3/100 + 5/10000 = 0.03 + 0.0005 = 0.0305 
 
13. 1 cm is equal is 
(a) 0.1 m 
(b) 0.01 m 
 
 
 
 
 
 
(c) 0.10 m 
(d) 0.001 m 
Solution: 
 
The option (b) is correct answer. 
100 cm = 1 m 
So we get,  
1 cm = 1/100 m = 0.01 m 
 
14. 1 m is equal to 
(a) 0.1 km 
(b) 0.01 km 
(c) 0.001 km 
(d) 0.0001 km 
Solution: 
 
The option (c) is correct answer. 
1000 m = 1 km 
So we get,  
1 m = 1/1000 m = 0.001 km 
 
15. 2 kg 5 gm is equal to 
(a) 2.5 kg 
(b) 2.05 kg 
(c) 2.005 kg 
(d) 2.6 kg 
Solution: 
 
The option (c) is correct answer. 
1000 g = 1 kg 
So we get 1 g = 1/1000 kg = 0.001 kg 
The same way 5 g = 5/1000 kg = 0.005 kg 
Hence, 2 kg 5 gm =2 kg + 0.005 kg = 2.005 kg 
 
16. 15 litres and 15 ml is equal to 
(a) 15.15 litres 
(b) 15.150 litres 
(c) 15.0015 litres 
(d) 15.015 litres 
Solution: 
 
The option (d) is correct answer. 
1000 ml = 1 litre 
So we get 1 ml = 1/1000 = 0.001 litre 
The same way 15 ml = 15/1000 = 0.015 litre 
Hence, 15 litre and 15 ml = 15 litre + 0.015 litre = 15.015 litres 
 
17. Which of the following are like decimals? 
(a) 5.5, 5.05, 5.005, 5.50 
(b) 5.5, 0.55, 5.55, 5.555 
Page 5


 
 
 
 
 
 
Objective Type Questions                                                    page: 7.32 
Mark the correct alternative in each of the following: 
 
1. 3/10 is equal to 
(a) 3.1 
(b) 1.3 
(c) 0.3 
(d) 0.03 
Solution: 
 
The option (c) is correct answer. 
We know that 3/10 = 0.3  
Here the denominator is 10, so we have to mark the decimal where 3 is in the tenth place. 
 
2. 7/100 is equal to 
(a) 7.1 
(b) 7.01 
(c) 0.7 
(d) 0.07 
Solution: 
 
The option (d) is correct answer. 
We know that 7/100 = 0.07 
Here the denominator is 100, so we have to mark the decimal where 7 is in the hundredth place. 
 
3. 4/1000 is equal to 
(a) 0.004 
(b) 0.04 
(c) 0.4 
(d) 4.001 
Solution: 
 
The option (a) is correct answer. 
Here the denominator is 1000, so we have to mark the decimal where 4 is in the thousandth place. 
 
4. The value of 37/10000 is 
(a) 0.0370 
(b) 0.0037 
(c) 0.00037 
(d) 0.000037 
Solution: 
 
The option (b) is correct answer. 
Here the denominator is 10000, so we have to mark the decimal where 3 is in the thousandth place and 7 is in the 
ten-thousandth place. 
 
5. The place value of 5 in 0.04532 is 
(a) 5 
(b) 5/100 
 
 
 
 
 
 
(c) 5/1000 
(d) 5/10000 
Solution: 
 
The option (c) is correct answer. 
We know that 5 is in the thousandth place. 
So we get 0.04532 = 4/100 + 5/1000 + 3/10000 + 2/100000 
 
6. The value of 231/1000 is 
(a) 0.231 
(b) 2.31 
(c) 23.1 
(d) 0.0231 
Solution: 
 
The option (a) is correct answer. 
It can be written as 
231/1000 = (200+30+1)/1000 = 200/1000 + 30/1000 + 1/1000 = 2/10 + 3/100 + 1/1000 
Here we have 2 tenths, 3 hundredths and 1 thousandth. 
Hence, the value of 231/1000 is 0.231. 
 
7. The value of 3 5/1000 is 
(a) 3.5 
(b) 3.05 
(c) 3.005 
(d) 3.0005 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
3 5/1000 = 3 + 5/1000 = 3 + 0.005 = 3.005 
 
8. The value of 3/25 is 
(a) 1.2 
(b) 0.12 
(c) 0.012 
(d) None of these 
Solution: 
 
The option (b) is correct answer. 
It can be written as 
3/25 = (3×4)/ (25×4) = 12/100 = 0.12 
 
9. The value of 2 1/25 is 
(a) 2.4 
(b) 2.25 
(c) 2.04 
(d) 2.40 
 
 
 
 
 
 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
2 1/25 = 2 + 1/25 = 2 + (1×4)/ (25×4) = 2 + 4/100 = 2 + 0.04 = 2.04 
 
10. 4 7/8 is equal to 
(a) 4.78 
(b) 4.87 
(c) 4.875 
(d) None of these 
Solution: 
 
The option (c) is correct answer. 
It can be written as 
4 7/8 = 4 + 7/8 = 4 + (7×125)/ (8×125)  
On further calculation 
4 7/8 = 4 + 875/1000 = 4 + 0.875 = 4.875 
 
11. 2+3/10+5/100 is equal to 
(a) 2.305 
(b) 2.3 
(c) 2.35 
(d) 0.235 
Solution: 
 
The option (c) is correct answer. 
We know that 3/10 = 0.3 having denominator as 10, so we need to mark the decimal where 3 is in the tenth place 
5/100= 0.05 having denominator as 100, so we need to mark the decimal where 5 is in the hundredth place 
It can be written as,  
2 + 3/10 + 5/100 = 2+ 0.3 + 0.05 = 2.35 
 
12. 3/100+5/10000 is equal to 
(a) 0.35 
(b) 0.305 
(c) 0.0305 
(d) 0.3005 
Solution: 
 
The option (c) is correct answer. 
We know that 3/100 = 0.03 having denominator 100, so we mark the decimal where 3 is in the hundredth place 
5/10000 = 0.0005 having denominator 10000, so we mark the decimal where 5 is in the ten thousandth place 
It can be written as,  
3/100 + 5/10000 = 0.03 + 0.0005 = 0.0305 
 
13. 1 cm is equal is 
(a) 0.1 m 
(b) 0.01 m 
 
 
 
 
 
 
(c) 0.10 m 
(d) 0.001 m 
Solution: 
 
The option (b) is correct answer. 
100 cm = 1 m 
So we get,  
1 cm = 1/100 m = 0.01 m 
 
14. 1 m is equal to 
(a) 0.1 km 
(b) 0.01 km 
(c) 0.001 km 
(d) 0.0001 km 
Solution: 
 
The option (c) is correct answer. 
1000 m = 1 km 
So we get,  
1 m = 1/1000 m = 0.001 km 
 
15. 2 kg 5 gm is equal to 
(a) 2.5 kg 
(b) 2.05 kg 
(c) 2.005 kg 
(d) 2.6 kg 
Solution: 
 
The option (c) is correct answer. 
1000 g = 1 kg 
So we get 1 g = 1/1000 kg = 0.001 kg 
The same way 5 g = 5/1000 kg = 0.005 kg 
Hence, 2 kg 5 gm =2 kg + 0.005 kg = 2.005 kg 
 
16. 15 litres and 15 ml is equal to 
(a) 15.15 litres 
(b) 15.150 litres 
(c) 15.0015 litres 
(d) 15.015 litres 
Solution: 
 
The option (d) is correct answer. 
1000 ml = 1 litre 
So we get 1 ml = 1/1000 = 0.001 litre 
The same way 15 ml = 15/1000 = 0.015 litre 
Hence, 15 litre and 15 ml = 15 litre + 0.015 litre = 15.015 litres 
 
17. Which of the following are like decimals? 
(a) 5.5, 5.05, 5.005, 5.50 
(b) 5.5, 0.55, 5.55, 5.555 
 
 
 
 
 
 
(c) 5.5, 6.6, 7.7, 8.8 
(d) 0.5, 0.56, 0.567, 0.5678 
Solution: 
 
The option (c) is correct answer. 
5.5. 6.6, 7.7, 8.8 are like decimals having same number of decimals. 
 
18. The value of 0.5 + 0.005 + 5.05 is 
(a) 5.55 
(b) 5.555 
(c) 5.055 
(d) 5.550 
Solution: 
 
The option (b) is correct answer. 
0.5 + 0.005 + 5.05 = 5.555 
 
19. 0.35 - 0.035 is equal to 
(a) 0.3 
(b) 0.349 
(c) 0.315 
(d) 0.353 
Solution: 
 
The option (c) is correct answer. 
0.35 – 0.035 = 0.315 
 
20. 2.5 + 3.05 - 4.005 is equal to 
(a) 1.545 
(b) 1.455 
(c) 1.554 
(d) 0.545 
Solution: 
 
The option (a) is correct answer. 
2.5 + 3.05 - 4.005 = 5.55 - 4.005 = 1.545 
 
21. Which is greater among 2.3, 2.03, 2.33, 2.05? 
(a) 2.3 
(b) 2.03 
(c) 2.33 
(d) 2.05 
Solution: 
 
The option (c) is correct answer. 
We know that the whole parts of all the above numbers are equal.  
So by comparing the tenth parts, two of the decimals have a tenth part 0 and two have a tenth part 3.  
Now by leaving the decimals which have a tenth part 0, 2.3 and 2.33.  
By comparing them, 2.33 is greater than 2.3, where, 2.3 has no hundredth part, while 2.33, the hundredth part is 3. 
 
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