Total number of products in store P in the year 2003 and in store Q in the year 2004 together is what percent more/less than total number of products in the store Q in the year 2000?

Explanation

100% Total number of products of store P in 2003 and that of store Q in 2004 = 55 + 55 = 110 Number of products in store Q in 2000 = 55 ∴ Required percent % 100 100 55 55 110 = × ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ − = i.e. more ×16-1 ×8-1 ×4-1 ×2-1 ×1-1 ×0.5-1 1 15 119 475 949 948 473 +20 +21 +23 +26 +30 +35 250 270 291 314 340 370 405 ) 1 3 6 ( − − ) 1 5 ( 3 − − ) 1 3 4 ( − − ) 1 3 3 ( − − ) 1 3 2 ( − − ) 1 3 1 ( − − 750 535 411 348 322 315 315 ×4-1 ×4-1 ×4-1 ×4-1 ×4-1 ×4-1 2 7 27 107 427 1707 6827 :18: