When the price of an inferior goods falls ceteris paribus the substitution effect leads to ________ in the quantity purchased and the income effect leads to _______ in the quantity purchased.
Projects A,B,C,D,E cost Rs. 100, Rs, 200, Rs. 300, Rs. 400, and Rs. 500 with MEC's of 0.07, 0.06,0.09 ,0.10 and 0.11 respectively. The market rate of interest is 8% Total investment spending is