Answer:
Let diameter of larger pipe and diameter of smaller pipe According to the question,
...(i) (1)
and ? (ii)(1)
Multiplying Eq. (ii) by 3, then subtract from Eq. (i), we get
(1)
Putting the value of in Eq. (i), we get
(1)
OR
Let monthly salary ` and fixed increment ` According to the question,
...(i) (1)
and ...(ii) (1)
On subtracting Eq. (ii) from Eq. (i), we get
(1+1)
On putting in Eq(i), we get
(2)
Hence, the monthly salary be ? 1300 and fixed increment be ` 50. (1)
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