Hard
Find the missing term: EPTA, GRVC, ITXE, …………..?
Explanation
Explanation
Each letter of the group advances by 2 positions: E->G->I->K, P->R->T->V, T->V->X->Z, A->C->E->G, giving KVZG.
PRO TIP
Re-check your working by substituting the answer back into the original question.