Man invests a certain sum of money at 6% p.a. s.i and another sum at 7% p.a. s.i his income from interest after 2years was rs.354.one fourth of the first sum is equal to one fiftg of the second sum.the total sum invested was
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Rs 2700 was total amount invested
Step-by-step explanation:
Let say first sum = 4A
Then Second sum = 5A ( as one fourth of 1st sum = one fiffth of second sum)
Simple interest = P * R * T /100
Interest on 4A = 4A * 6 * 2 /100
= 48A/100
Interest on 5A = 5A * 7 * 2 /100
= 70A/100
Total Interest = (48A + 70A)/100
= 118A/100
118A/100 = 354
=> A = 300
4A = 1200
5A = 1500
Total Sum invested = 1200 + 1500 = 2700 Rs
Rs 2700 was total amount invested
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