MCQ PracticeThe tens digit of a two-digit number is two more than its unit digit. The two-digit number is 7 times the sum of the digits. Find the units digits?Subject: MathematicsTopic: Simple EquationsA1B2C3D4 E. None of theseCorrect Answer: BPractice QuizBack to MCQsRelated MCQsWater is _________ times viscous than air?Arterial blood contains _________ of CO2 per 100 ml of bloodImportant factors which affect the capacity of haemoglobin to combine with oxyge