Question

At what percent per annum will Rs 1200 amount to Rs 1726.50 in 4 1/2 years

Answer 1

$amount \: = rs1726.50 \:$
$principal \: = \:rs 1200$
$s i \: = amount \: - principal$
$1726.50 - 1200$
$rs526.50$
$rate \: = \: 526.50 \times 100 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 1200 \times 41 \div 2$
$rate \: = 2.14\%$