3 x40 + 3 x 2 = 120 + 6 = 126
Type your answer here... the answer is 3 because 3x24 is 72 and 3x42 is 126.
3x42 + 4 You don't even need a 2 : 3x4x4 +4
3+7=10 (3 and 7 are both ratio numbers) 420/10=42 (10 is the sum of both ratio) 3x42=126 girls (3 is ratio of girls) 7x42=294 boys (7 is ratio of boys)