The sum of 15% and 10% of a positive number is 70, then double of that number is |
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a) |
440 |
b) |
280 |
c) |
560 |
d) |
140 |

The sum of 15% and 10% of a positive number is 70, then double of that number is |
|||||||

a) |
440 |
b) |
280 |
c) |
560 |
d) |
140 |

1 Answer

127 votes

Let the positive number be

Then, according to problem, we have of of

∴ Double of the number =2×280=560

127 votes

127