Question
Lala has lent Rs. 30,000 to Murali and Bansi at 7% p.a.
and at 11% per annum respectively. At the end of the year, he has gained an overall interest at the rate of 8%. Find the amount he has lent to Bansi?Solution
Using allegation method, 
4 units = 30,000 Bansi = 30000/4 = Rs. 7,500
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