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City A population is 68000, decreasing at a rate of 80 per
year City B having population 42000 increasing at a rate of
120 per Year. In how many years both the cities will have
same population

Question Posted / guest

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City A population is 68000, decreasing at a rate of 80 per year City B having population 42000 incr..

Answer / sabarish

let n be the no of yrs each populations meets.

68000 - n * 80 = 42000 + 120 * n

solving n=130.

Is This Answer Correct ?    86 Yes 7 No

City A population is 68000, decreasing at a rate of 80 per year City B having population 42000 incr..

Answer / guest

130 years

Is This Answer Correct ?    28 Yes 6 No

City A population is 68000, decreasing at a rate of 80 per year City B having population 42000 incr..

Answer / monk

130 yrs

Is This Answer Correct ?    16 Yes 2 No

City A population is 68000, decreasing at a rate of 80 per year City B having population 42000 incr..

Answer / naiyer

68000-80*n = 42000+120*n
68000-42000 = 120n+80n
24000 = 200n
n = 120

Is This Answer Correct ?    0 Yes 4 No

City A population is 68000, decreasing at a rate of 80 per year City B having population 42000 incr..

Answer / bk

after 1 year

Is This Answer Correct ?    0 Yes 7 No

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