Subject
Bank Exam
Topic
Southeast Bank Ltd. - Probationary Officer - 2017
If x = a + b and y = a + 2b, then what is a - b, in terms of x and y ?
If x = a + b and y = a + 2b, then what is a - b, in terms of x and y ?
ক)
2y - 3xখ)
3y - 2xগ)
2x - 3yঘ)
3x - 2yExplanation
Solution: দেয়া আছে, x = a + b .............(1) y = a + 2b ...........(2) (1) => a + b = x => a = x - b .. (3) (2) নং সমীকরণে a এর মান বসাই, y = a + 2b = x - b + 2b = x + b b = y - x এখন b এর মানো (3) নং সমীকরণে বসাই, a = x - b = x - y + x = 2x - y প্রদত্ত রাশিমালা = a - b = 2x - y - (y - x) = 2x - y - y + x = 3x - 2yRelated questions
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