Question

5) If HCF (10, 15) = 2a + 1 then a =​

Answer 1

Answer:

HCF of 10, 15 =10

2a +1 = 2 ( 5 ) = 10 +1 .

a = 10

Answer 2

Answer:

2

Step-by-step explanation:

HCF of 10=2×5

HCF of 15=3×5

Common between HCF of 10 and 15 is 5

HCF(10,15)=5

2a+1=5

2a=5-1

2a=4

a=4/2

a=2