Page 72 - Demo

SmartMindMath MagicCheck your speed with numbers in this quiz.1.How many seconds are there in a day? ...............................2.What is four times thrice 12? ...............................3.Add the number of strings on a violin to the number of keys on a piano and from this, subtract the number of strings on a clarinet. What number do you get? ...............................4.Long, long ago, it was equal to a person%u2019s foot. What is it called today and how much does it measure? ...............................5.If A denotes %u00f7, B denotes %u00d7, C denotes +, and D denotes %u2013 , then 35 A 7 C 4 B 3 D 3 = ...............................6.Write the next number in the series 15, 35, 65, 105, ...............................7.Rajesh is six years older than his wife. His wife is three times as old as her son who was seven years old three years ago.a.What is Rajesh%u2019s present age? ...............................b.What is the difference between the ages of Rajesh and his son? ...............................8.If 4 + 3 = 105 + 4 = 136 + 5 = 16, then 7 + 6 = ..................9.Fill in the missing number.2421224?33410.Which is the largest number you can write using four ones (1, 1, 1, 1)? ......................72