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ATQ, we can say that Rate in Scheme ‘X’ = R = [(2176 × 100)/(6800 × 2)] = 16% Rate in Scheme ‘Y’ = R – 6 = 16 – 6 = 10% Then, (4000 + 2a) × 2 × 0.16 – (3200 + 6a) × (1.12 – 1) = 112 (4000 + 2a) × 0.32 – (3200 + 6a) × 0.21 = 112 1280 + 0.64a – 672 – 1.26a = 112 0.62x = 496 a = 800 Amount invested in Scheme 'Y' = 3200 + (6 × 800) = Rs.8000
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