The average daily income of 7 men, 11 women, and 2 boys Rs.257.50. If the average daily income of the men is Rs.10 more than that of women and the average daily income of the women is Rs.10 more than that of boys, the average daily income of a man is
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. Rs. 265
| Application |
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Let per day Income of Boy, woman, man are = x, x + 10, x + 20 According to the question, (7M + 11W + 2B)/20 = 257.50 7(x + 20) + 11(x + 10) + 2x = 257.50 × 20 7x + 140 + 11x + 110 + 2x = 5150 20x = 5150 - 250 x = 4900/20 = 245. Per day income of man = x + 20 = 245 + 20 = 265. |