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ATQ,
Let Rohit’s investment be Rs. 'y'.
(15,000 × 12) : (y × 6) = 5 : 3
→ 180000 : 6y = 5 : 3
→ 180000/6y = 5/3
→ 30000/y = 5/3
→ y = (30000 × 3)/5
→ y = Rs. 18,000
A certain sum on compound interest becomes 56,180 when compounded annually after 2 years and 59,550.80 after 3 years Find the sum.
A certain sum of money becomes 4000 in 6 years and Rs. 5000 in 10 years at any certain rate of simple interest. Find the principal amount.
What sum of money must be given at simple interest for 3 months at 5% per annum in order to earn Rs. 220 interest?
How much time will it take for an amount of Rs.2000 to yield Rs. 640 as interest at 8% p.a. of SI?