1 The LCM of two numbers is 630 and their HCF is 9 If the sum - Maths - Mathematical Reasoning

Question

1 The LCM of two numbers is 630 and their HCF is 9 If the sum of
the numbers is 153, their difference is

A) 63 B) 27 C) 81 D) 18

3 If x 2 - 5 x + 1 = 0   t h e n   f i n d   x 4 - 1
x 4 :
A )     115 21            
      B )     115 2      
                C )  
  575 D) None of these

Neha Sethi · Accepted Answer

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1. The LCM of two numbers is 630 and their HCF is 9. If the sum of the numbers is 153, their difference is A) 63 B) 27 C) 81 D) 18 3. If x 2 - 5 x + 1 = 0 t h e n f i n d x 4 - 1 x 4 : A ) 115 21 B ) 115 2 C ) 575 D) None of these

1. The LCM of two numbers is 630 and their HCF is 9. If the sum of the numbers is 153, their difference is

A) 63 B) 27 C) 81 D) 18

3. If $x^{2} - 5 x + 1 = 0 t h e n f i n d x^{4} - \frac{1}{x^{4}} :$
$A) 115 \sqrt{21} B) 115 \sqrt{2} C) 575$ D) None of these