Study the given matrix carefully and select the number from among the given options that can replace the question mark (?) in it. 7 9 5 3 8 ? 28 81 50

Study the given pattern carefully and select the number that can replace the question mark (?) in it. First row - 14, 42, 84 Second row - 28, 84, 168 Third row - 19, 57, ?

Study the given pattern carefully and select the number that can replace the question mark (?) in it. First row - 80, 40, 20 Second row - 112, 56, 28 Third row - 244, 122, ?