Question
Average weight of 36 students is 68 kg. When two new
students with weights (m + 12) kg and (m - 6) kg join, the average weight becomes 69 kg. Find the value of (m - 50).Solution
38 × 69 − 36 × 68 = m + 12 + m − 6
2m + 6 = 2622 − 2448 = 174
2m = 168
m = 84
m − 50 = 34
Select the appropriate answer.
1) deemocracy
2) demaucracy
3) democracy
4) demokracy
5) none of these
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