Study the given pattern carefully and select the number from among the given options that
can replace the question mark (?) in it.

Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 21.
Figure 1: 48 ÷ 8 = 6; 42 ÷ 14 = 3 ⇒ 6 × 3 = 18
Figure 2: 63 ÷ 21 = 3; 45 ÷ 9 = 5 ⇒ 3 × 5 = 15
Figure 3: 56 ÷ 8 = 7; 51 ÷ 17 = 3 ⇒ 7 × 3 = 21