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When 40% percent of a number is added to another number the second number increases to its 20%. What is the ratio between the first and second number?
  • a)
    2:1
  • b)
    1:2
  • c)
    2:3
  • d)
    3:4
  • e)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
When 40% percent of a number is added to another number the second num...
Answer – b) 1:2
Explanation :
(40/100)*a + b = (120/100)*b
a:b = 1:2
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Most Upvoted Answer
When 40% percent of a number is added to another number the second num...
Answer – b) 1:2 Explanation : (40/100)*a + b = (120/100)*b a:b = 1:2
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Community Answer
When 40% percent of a number is added to another number the second num...
Yes, the answer is B...let 1st no. be x and another be y. Then ATQ....0.4x+y = 1.2y
0.4x= 0.2y=>x/y=2/4=1/2 :)
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