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1. The sum of two numbers is equal to thrice difference. If the smaller of the numbers is 10 find the other number.
- A. 15
- B. 15
- C. 15
- D. 15
Answer: Option B
Explanation:
ধরি, সংখ্যা দুটি x ও y ; যেখানে x>y
x + y = 3 ( x - y)
x + 10 = 3 ( x - 10)
x + 10 = 3x - 30
2x = 40
x = 20
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