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All questions of Proportional Relationships for Grade 8 Exam
the value of x will be:
is :
The value of (3-1 + 4-1)-1 ÷ 5-1 =?- a)7/10
- b)7/15
- c)7/5
- d)60/7
Correct answer is option 'D'. Can you explain this answer?
The value of (3-1 + 4-1)-1 ÷ 5-1 =?
a)
7/10
b)
7/15
c)
7/5
d)
60/7
|
Ananya Das answered |
Here (3-1 + 4-1)-1 ÷ 5-1
(6 + 3) × 9-1 ÷ 3-1 + 2-2 =- a)5/4
- b)7/4
- c)13/4
- d)7/8
Correct answer is option 'C'. Can you explain this answer?
(6 + 3) × 9-1 ÷ 3-1 + 2-2 =
a)
5/4
b)
7/4
c)
13/4
d)
7/8
|
Target Study Academy answered |
Here (6 + 3) × 9-1 ÷ 3-1 + 2-2
= 9 × 9-1 ÷ 3-1 + 2-2
= 9 × 9-1 ÷ 3-1 + 2-2
m ≠ 0, p ≠ 0 and m = n = p
If (23x – 1 + 10) ÷ 7 = 6 then what is the value of x?- a)0
- b)1
- c)-2
- d)2
Correct answer is option 'D'. Can you explain this answer?
If (23x – 1 + 10) ÷ 7 = 6 then what is the value of x?
a)
0
b)
1
c)
-2
d)
2
|
|
Ananya Das answered |
Here (23x - 1 + 10) ÷ 7 = 6
On comparing the powers
x = 2
On comparing the powers
x = 2
By what number should 
be divided so that the duotient is 
?- a)3/2
- b)-3/2
- c)-1/3
- d)1/2
Correct answer is option 'B'. Can you explain this answer?
By what number should be divided so that the duotient is ?
be divided so that the duotient is ?a)
3/2
b)
-3/2
c)
-1/3
d)
1/2
|
Shubham Sharma answered |
Let the number be x.
x = -3/2
x = -3/2
What is the value of x for which. 
- a)-1
- b)1
- c)2
- d)3
Correct answer is option 'D'. Can you explain this answer?
What is the value of x for which.
a)
-1
b)
1
c)
2
d)
3
|
Atharv Phatak answered |
Solution
By substituting 7/12 with 1
= -4+3x = 5
3x = 5+4
3x = 9
x= 9/3
x=3
Hence, correct option is (d) x = 3
By substituting 7/12 with 1
= -4+3x = 5
3x = 5+4
3x = 9
x= 9/3
x=3
Hence, correct option is (d) x = 3
What is the value of p for which
- a)1
- b)0
- c)– 1
- d)- 2
Correct answer is option 'C'. Can you explain this answer?
What is the value of p for which
a)
1
b)
0
c)
– 1
d)
- 2
|
|
Shubham Sharma answered |
2p – 1 = - 3
⇒ 2p = - 2
⇒ p = -1
be multiplied so that the product is 
?
, where x = - 0.5?
By what number should (-6)-1 be multiplied so that the product becomes 9-1?- a)-1/3
- b)2/3
- c)-2/3
- d)1/3
Correct answer is option 'C'. Can you explain this answer?
By what number should (-6)-1 be multiplied so that the product becomes 9-1?
a)
-1/3
b)
2/3
c)
-2/3
d)
1/3
|
|
Aarav Chaudhary answered |
Solution:
To find the value of the unknown number, we can use the following equation:
(-6) - 1 = x(9 - 1)
Simplifying the right-hand side of the equation, we get:
(-6) - 1 = x(8)
-7 = 8x
Dividing both sides by 8, we get:
x = -7/8
Therefore, the correct answer is option C, -2/3.
To find the value of the unknown number, we can use the following equation:
(-6) - 1 = x(9 - 1)
Simplifying the right-hand side of the equation, we get:
(-6) - 1 = x(8)
-7 = 8x
Dividing both sides by 8, we get:
x = -7/8
Therefore, the correct answer is option C, -2/3.
?
then k will be equal to: 
, Find x?
then x =- a)6
- b)5
- c)3 (log2 3 + 1)
- d)3 (log3 2 + 1)
Correct answer is option 'D'. Can you explain this answer?
then x =a)
6
b)
5
c)
3 (log2 3 + 1)
d)
3 (log3 2 + 1)
|
|
Raj Malik answered |
Here 23x + 5 × (3)2x + 5
= (2)3x + 2 × (3) 3x + 2
= (2)3x + 2 × (3) 3x + 2
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