Question

The difference between a number and 30 percent of number is 140 , then 50 percent of the number is - a) 100 b) 200 c) 60 d) 140

Answer 1

Answer:

Let the number be 'x'.

Given,

x-30x/100=140

x-0.3x=140

0.7x=140

x=140/0.7=1400/7=200

Therefore 50% 0f 200= 50/100 *200=100

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