Question

N= 2^p * 5^q * 7^r
and 500= 2^2 * 5^3
The highest common factor of N and 500
is 2²x5^2? The lowest common multiple of
N and 500 is
2²x5²x7.
Find p, q and r

Answer 1

Answer

Correct option is

D

0.013%

C  

5

​

H  

5

​

N+H  

2

​

O→C  

5

​

H  

5

​

NH  

+

+OH  

−1

 

K  

b

​

=Cα  

2

 

α=  

C

K  

b

​

 

​

 

​

 

α=  

0.1

1.7×10  

−9

 

​

 

​

 

α=1.30×10  

−4

 

percentage ofα=1.30×10  

−4

×100=0.013%

Hence option D is the correct answer

Answer 2

Answer:

N= 2^p * 5^q * 7^r

and 500= 2^2 * 5^3

The highest common factor of N and 500

is 2²x5^2? The lowest common multiple of

N and 500 is

2²x5²x7.

Find p, q and r