Question : If a sum of money becomes INR 6,000 in 3 years and INR 10,500 in 7 years and 6 months at the same rate of simple interest, then what is the rate of interest?

Option 1: $33 \frac{1}{3}$%

Option 2: $25 \frac{1}{2}$%

Option 3: $45 \frac{2}{3}$%

Option 4: $66 \frac{1}{3}$%

Question : If 60 chairs are bought for Rs. 24,560, then how many chairs must be sold for Rs. 24,560 to earn a profit of 20 percent?

Option 1: 50

Option 2: 30

Option 3: 60

Option 4: 40

Question : A sells a cycle to B at a profit of 33% and B sells it to C at a loss of 25%. If C bought the cycle for INR 3059, then the cost price of it for A was:

Option 1: INR $3066 \frac{2}{3}$

Option 2: INR $2044 \frac{1}{3}$

Option 3: INR $4054 \frac{1}{3}$

Option 4: INR $5014 \frac{2}{3}$

Question : A sold an item to B at a gain of 25% and B sold it to C at a loss of 10%. If C paid INR 6,520 for it, then the cost price of the item for A was:

Option 1: INR 4,355$\frac{4}{9}$

Option 2: INR 6,125$\frac{1}{9}$

Option 3: INR 4,785$\frac{4}{9}$

Option 4: INR 5,795$\frac{5}{9}$

Question : If the amount is $3\frac{3}{8}$ times the sum after 3 years at compound interest compounded annually, then the Rate of interest per annum is:

Option 1: $25$%

Option 2: $50$%

Option 3: $16\frac{2}{3}$%

Option 4: $33\frac{1}{3}$