a 21 % stock yielding 10 % is quoted at :
"solution to earn rs . 10 , money invested = rs . 100 . to earn rs . 21 , money invested = rs . ( 100 / 10 x 21 ) = rs . 210 . â ˆ ´ market value of rs . 100 stock = rs . 210 answer b"
multiply(divide(const_100, 10), 21)