The rectangle is made up of 12 identical squares. Which of the following 2 parts amongst 4 parts P, Q, R and S will add up to form 7⁄12 of the rectangle?
AP and R
BQ and S
CP and Q
DQ and R
Already 9 shaded parts are there out of 12 total parts, if 2 parts are added ( i.e. shaded ) it will be 11/12. Only if two parts either from P