Question

जो सबसे आगे बताया मार्क ब्रेन लिस्ट

Answer 1

Answer: Answer for this is B

Answer 2

Answer:

option B

700

Step-by-step explanation:

mana ki seb the. x

sold = (40/100)x = 0.4x

bache seb = x -0.4x = 0.6x

0.6x = 420

x = 700