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Let SP of bag = 100x SP of book = 100x × (120/100) = 120x SP of bottle = 100x × (80/100) = 80x => 120x – 100x = 2200 => x = 110 SP of bottle = 80 × 110 = Rs.8800 SP of bag = 100 × 110 = Rs.11000 Average = (8800 + 11000)/2 = 19800/2 = 9900
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A sum of Rs. 4000 is invested at simple interest for 2 years. If the rate interest for first year is 15% p.a. while 25% p.a. for second year, then find ...