In what time will Rs 64000 amount to Rs 68921 at 5% per annum, interest being compounded half-yearly?

In what time will Rs 800 amount to Rs 882 at 5% per annum compounded annually ?

Find the rate percent per annum if Rs 2000 amount to Rs 2662 in 1.5 years, interest being compounded half-yearly?

Find the rate percent per annum if Rs 2000 amount to Rs 2662 is years, interest being compounded half-yearly?

What sum will amount to Rs 6760 at 8% per annum in I year when the interest is compounded half yearly?

In what time will Rs 4400 become Rs 4576 at 8% per annum interest compounded half-yearly?

In what time will Rs 4400 become Rs 4576 at 8% per annum interest compounded half-yearly?

In what time will Rs. 1000 amount to Rs. 1331 at 20% per annum, compounded half yearly?

In what time will Rs. 10,000 amount to Rs. 13310 at 20% per annum compounded half yearly?