SELECT * FROM question_mgmt as q WHERE id=9540 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=6 AND chapterId=271 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)
Solve the problems given in Example 1.
(i) let x and y are the no of marbles of Romil and Somi respectively.
Acc. to ques,
X + y = 45................... (1)
When they both lost their 5 marbles
(x – 5) (y – 5) = 124.................... (2)
From equation (1), we have
y = 45 – x
Put this value of x in equation (2), we get
(x – 5)(45 – x – 5) = 124
(x – 5)(40 – x) = 124
40x – x2 – 200 + 5x = 128
x2 - 45x + 324 = 0
x2 - 36x - 9x + 324 = 0
x (x – 36) – 9 (x – 36) = 0
(x – 9) (x – 36) = 0
x = 9 or x = 36
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