If doubling a number and adding 20 to the result gives the same answer as multiplying the number by 8 and taking away 4 from the product, the number is :
2
3
4
6
Correct Option: C
Let the number be x. ∴ According to question, 2x + 20 = 8x – 4 or 8x – 2x = 20 + 4 or 6x = 24 ∴ x = 4