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1. A worker union contract specifies a 6% salary increase plus a Tk. 450 bonus for each worker. For a worker, this is equivalent to 8% salary increase. What was this woker's salary before the new contact?
- A. 21,500
- B. 21,500
- C. 21,500
- D. 21,500
Answer: Option C
Explanation:
ধরি, পূর্বে salary ছিল x টাকা
∴(x × 6%)+450=x × 8%
⇒6x/100+450=8x/100
⇒6x+45000/100=8x/100
⇒6x + 45000 = 8x
⇒2x = 45000
∴x = 22500
∴(x × 6%)+450=x × 8%
⇒6x/100+450=8x/100
⇒6x+45000/100=8x/100
⇒6x + 45000 = 8x
⇒2x = 45000
∴x = 22500
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