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1. what is the greater of two numbers whose product is 900 , if sum of these two numbers exceeds their difference by 30?
- A. 15
- B. 15
- C. 15
- D. 15
Answer: Option B
Explanation:
ধরি, সংখ্যা দুটি x ও y (x>y)
xy = 90 - - - - - (1)
এবং (x + y) - (x - y) = 30
2y = 30
y = 15
1 থেকে পাই x = 900/15 = 60
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