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Delhi Police Exam Numerical Ability Study Material

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Algebra

If a/3 = b/2 , then value of (2a+3b)/(3a-2b) is

a) 12/5
b) 5/12
c) 1
d) 12/7

✔Answer

✔Solution

Correct Answer Is : 12/5

Solution Is : Suppose, a = 3k and b = 2k
then , ( 23k + 32k) / ( 33k - 22k ) = 12k / 5k = 12 / 5

a)
b)
c)
d)

✔Answer

✔Solution

Correct Answer Is :

Solution Is :

Measure of each interior angle of a regular polygon can never be

a) 150°
b) 105°
c) 108°
d) 144°

✔Answer

✔Solution

Correct Answer Is : 105°

Solution Is : Measure of each interior angle of a regular polygon can never be in odd digit i.e., 105°

a) -1
b) 0
c) 1
d) 1/√3

✔Answer

✔Solution

Correct Answer Is : 0

Solution Is :

a) 3
b) 2
c) 0
d) 1

✔Answer

✔Solution

Correct Answer Is : 0

Solution Is :

If p+q = 10 and pq = 5,the numerical value of (p/q + q/p) will be

a) 22
b) 18
c) 16
d) 20

✔Answer

✔Solution

Correct Answer Is : 18

Solution Is :

If p and q are two relatively prime positive integers such that p+q= 10, p < q , then the number of possible value of p is

a) 1
b) 2
c) 3
d) 4

✔Answer

✔Solution

Correct Answer Is : 1

Solution Is : Two numbers are said to be co-prime ,if their HCF is 1 Co-prime numbers can be prime or not Now, p+q =10 ,P < Q Possible values of P are p = 3 , q = 7 possible values of p is 1

Which is greater 3√2 or√3

a) 3√2
b) √3
c) Equal
d) Cannot be compared

✔Answer

✔Solution

Correct Answer Is : √3

Solution Is : The greater is √3

If x = √3 + √2 and y = √3 - √2 then the value is 8xy(x² + y²) is

a) 16 √6
b) 32
c) 48 √2
d) 80

✔Answer

✔Solution

Correct Answer Is : 80

Solution Is :

If x + 1/y =1 and y + 1/ z = 1, then z + 1/x is equal to

a) 2
b) 1/2
c) 1
d) 0

✔Answer

✔Solution

Delhi Police Exam Numerical Ability Study Material

Algebra

If a/3 = b/2 , then value of (2a+3b)/(3a-2b) is

Correct Answer Is : 12/5

Solution Is : Suppose, a = 3k and b = 2k then , ( 2*3k + 3*2k) / ( 3*3k - 2*2k ) = 12k / 5k = 12 / 5

Correct Answer Is :

Solution Is :

Measure of each interior angle of a regular polygon can never be

Correct Answer Is : 105°

Solution Is : Measure of each interior angle of a regular polygon can never be in odd digit i.e., 105°

Correct Answer Is : 0

Solution Is :

Correct Answer Is : 0

Solution Is :

If p+q = 10 and pq = 5,the numerical value of (p/q + q/p) will be

Correct Answer Is : 18

Solution Is :

If p and q are two relatively prime positive integers such that p+q= 10, p < q , then the number of possible value of p is

Correct Answer Is : 1

Solution Is : Two numbers are said to be co-prime ,if their HCF is 1 Co-prime numbers can be prime or not Now, p+q =10 ,P < Q Possible values of P are p = 3 , q = 7 possible values of p is 1

Which is greater 3√2 or√3

Correct Answer Is : √3

Solution Is : The greater is √3

If x = √3 + √2 and y = √3 - √2 then the value is 8xy(x2 + y2) is

Correct Answer Is : 80

Solution Is :

If x + 1/y =1 and y + 1/ z = 1, then z + 1/x is equal to

Correct Answer Is : 1

Solution Is :

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Solution Is : Suppose, a = 3k and b = 2k
then , ( 23k + 32k) / ( 33k - 22k ) = 12k / 5k = 12 / 5

If x = √3 + √2 and y = √3 - √2 then the value is 8xy(x² + y²) is