Q82
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 :
A.
2
B.
3
C.
4
AnswerD.
6
Answer: Option C
Solution
Answer: Option C
Solution:
Let the number be xThen,
⇔ 2x + 20 = 8x - 4
⇔ 6x = 24
⇔ x = 4