A sum of money lent at simple interest amount to Rs. 880 in 2 years and to Rs. 920 in 3 years. The sum of money (in rupees) is :
A sum of money lent at simple interest amount to Rs. 880 in 2 years and to Rs. 920 in 3 years. The sum of money (in rupees) is :
[A]784
[B]800
[C]700
[D]760
800
If the principal be x and rate of interest be r % per annum then,
SI after 1 year = 920 – 880 = Rs. 40
∴ after 2 year = Rs. 80
$latex => 880 = x+80$
$latex => x = 880-80 = 800$
Hence option [B] is the right answer.