Question

An electric meter gives a reading of 10% less than the actual consumption. If the reading of one month is 180 units, then the actual consumption is

• A. 162 units
• B. 200 units
• C. 190 units
• D. none of these

Answer 1

The correct option is B 200 units

Reading of one month=180 units, which is 10% less than actual units
Therefore Reading of one month is 90% of actual consumption
so, when 90 is consumed resding is 180 units
when 100 will be consumed(actual consumption) reading will be $\frac{180}{90}\times 100=200units$