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7th Grade > Mathematics

FRACTIONS AND DECIMALS MCQs

Fractions, Decimals

Total Questions : 227 | Page 14 of 23 pages
Question 131. State whether true or false- All the fractions can be expressed as mixed fractions.
  1.    True
  2.    False
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> False
:
B
Only improper fractions can be expressed as mixed fractions.
Question 132. The fractions which have same numerators are known as like fractions.
  1.    True
  2.    False
  3.    24812
  4.    24912
 Discuss Question
Answer: Option B. -> False
:
B
The fractions which have same denominators are known as like fractions. Otherwise, they are known as unlike fractions
Question 133. I have to walk  2.87 km to attend a party at my friend's house. If I have already walked  1500 m, how many more kilometres do I have to walk?
  1.    1.17 km
  2.    1.27 km
  3.    1.37 km 
  4.    1.47 km
 Discuss Question
Answer: Option C. -> 1.37 km 
:
C
Total distance = 2.87 km
= 2.87× 1000 m
= 2870 m
Distance covered = 1500 m
Remaining distance = 2870 - 1500
= 1370 m
1370m=13701000=1.37km
Question 134. Find the digit at the tenths place in 123.456.
  1.    2
  2.    6
  3.    5
  4.    4
 Discuss Question
Answer: Option D. -> 4
:
D
Given numberis 123.456
Digit in the Hundreds place: 1
Digit in the Tens place: 2
Digit in the Ones place: 3
Digit in theTenths place: 4
Digit in the Hundredths place: 5
Digit in the Thousandths place: 6
So, the digit at tenths place in 123.456is 4.
Question 135. 68.2305 + 574.333 + 96.0020 = ____
  1.    738.5565
  2.    738.6655
  3.    738.5655
  4.    738.5656
 Discuss Question
Answer: Option C. -> 738.5655
:
C

68.2305
+ 574.3330
+ 96.0020
738.5655
____________
Question 136. Which of the following lies between 0.754646 and 0.755646?
  1.    0.756446 
  2.    0.756464 
  3.    0.756647 
  4.    0.755464 
 Discuss Question
Answer: Option D. -> 0.755464 
:
D
The number between 0.754646 and 0.755646must be greater than 0.754646 and smaller than 0.755646. In 0.756446, 0.756464 and 0.756647, digits till hundredth place are same but digit at ten thousandth place is greater than that of 0.755646. So, they are greater than 0.755646. So, only 0.755464can be the answer.
Question 137. Convert 74 to decimal form. 
  1.    1.45
  2.    1.55
  3.    1.65
  4.    1.75 
 Discuss Question
Answer: Option D. -> 1.75 
:
D
Multiplying 74 with 25 on numerator and denominator to make denominator as 100.
=7×254×25
=175100=1.75
∴74=1.75
Question 138. If you have to represent 5 hours and 45 minutes in hours as decimals, how would you do it?
  1.    5.04 hours 
  2.    5.45 hours 
  3.    5.44 hours 
  4.    5.75 hours 
 Discuss Question
Answer: Option D. -> 5.75 hours 
:
D
60 minutes = 1 hour
1 minute = 160hour
45 minutes = 45×160
= 4560
= 0.75 hours
So, 5 hours and 45 minutes =(5+0.75)=5.75 hours
Question 139. Product of 9.52 and 9.82 is ______.
  1.    93.4864
  2.    9348.64
  3.    83.4864
  4.    834.864
 Discuss Question
Answer: Option A. -> 93.4864
:
A
The product of 9.52 and 9.82 is given by:Product Of 9.52 And 9.82 Is ______.
Here multiplicandshave 2 decimal places each.Hence,the product will have 4 digits after the decimal point.
Therefore, 93.4864 is the answer.
Question 140. Which of the following fractions lies between 38 and 78 on the number line?
  1.    12
  2.    14
  3.    2016
  4.    98
 Discuss Question
Answer: Option A. -> 12
:
A
Converting the given fractions into equivalent fractions with denominator 8, we have
​1×42×4=48
1×24×2=28
​9×18×1=98
​20÷216÷2=108
Since3<4<8, we have 38<48<78
i.e.,38<12<78
Thus, 12 liesbetween38 and78.

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