Two numbers are 35% and 50% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

Let the third number be 100.
The first number is 35% less than the third number:

First number=100−35=65
The second number is 50% less than the third number:

Second number=100−50=50
We need to find by what percentage the second number (50) must be increased to become equal to the first number (65).

Required increase=65−50=15
Percentage enhancement=(
Second number
Increase
​
)×100
Percentage enhancement=(
50
15
​
)×100=15×2=30%