Question

A number when decreased by 40% it becomes 90 what will be its value if it is increased by 40 %

Answer 1

$<b>Heya mate. (^_-). Solution below.$
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• Let the number be 'x'.



• Then, 40% of x -

= 40/100 × x

= 2/5 × x

= 2x/5


• Now, decreased number -

= x - 2x/5

= (5x - 2x)/5

= 3x/5



• But, according to the question, decreased number = 90

=> 3x/5 = 90

=> x = 90 × 5/3

=> x = 450/3

=> x = 150

• Hence, the number is 150



• Now, if 150 is increased by 40% -

= 150 + 40% of 150

= 150 + 40/100 × 150

= 150 + 4 × 15

= 150 + 60

= 210

$<marquee>Hence, your answer is 210.</marquee>$
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Thank you.. ;-)