The task is to generate the correct answer for a given math problem.

Problem: by investing in 1623 % stock at 64 , one earns rs . 1500 . the investment made is
rs . 5760

Problem: which number can we add to 425897 to get a number exactly divisible by 456 ?
7

Problem: a brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 29 m * 2 m * 0.75 m ?

29000