mrs B. invested Rs 30,000 apart at 5% and a part at 8% the total interest on the investment was Rs 2100. how much did she invested each rate?
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Answer:
(2100/30000) *100 = 7%
By mixture and aligations
7 — 5 = 2
8 — 7 = 1
There are in ratio of 2:1
Total 2+1 = 3 parts
3 parts = 30000
1 part = 10000 is 8%
2 parts = 20000 is 5%
Step-by-step explanation:
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