a monkey ascends a greased pole 22 meters high . he ascends 2 meters in the first minute and then slips down 1 meter in the alternate minute . if this pattern continues until he climbs the pole , in how many minutes would he reach at the top of the pole ?
"the money is climbing 1 meter in 2 min . this pattern will go on till he reaches 20 meters . i mean this will continue for first 20 * 2 = 40 mins . he would have reached 20 meters . after that he will climb 2 meters and he will reach the pole . so total time taken = 40 + 1 = 41 mins . so , asnwer will be b"
add(multiply(multiply(const_4, 2), 2), 1)