A and B have a few rupees. A tells B that if you give me ₹ 30, then I will get double with you. B says to A, if you give me ₹ 10, then I will have 3 times of you. How many rupees B has?
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a2 – b2 = (a + b) (a – b)
16a2 – 144 = (4a)2 = (12)2
= (4a + 12) (4a – 12)
= 4 (a + 3) x 4 (a – 3)
= 16 (a + 3) (a – 3)
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Answer:
because , A Says I can double 30 Rupees , That means A have 60 Rupees
because , B says I can Triple 10 Rupees , That means B have 30 Rupees
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