51. If the six digit number 15x1y2 is divisible by 44, then (x + y) is equal to:
52. The number 150328 is divisible by 23. If the digits are rearranged in descending order and five times of 13 is subtracted from the new number thus formed, then the resultant number will be divisible by:
53. If a 10-digit number 1330x558y2 is divisible by 88, then the value of (x + y) is:
54. The smallest fraction, which should be added to the sum of $$2\frac{1}{2},\,3\frac{1}{3},\,4\frac{1}{4}$$ and $$5\frac{1}{5}$$ to make the result a whole number, is.
55. The product of two number is 48. If one number equals "The number of wings of a bird plus 2 times the number of figure on your hand divided by the number of wheels of a Tricycle." Then the other number is?
56. The maximum value of F in the following equation 5E9 + 2F8 + 3G7 = 1114 is:
57. When a two-digit number is multiplied by the sum of its digits, the product is 424. When the number obtained by interchanging its digits is multiplied by the sum of the digits, the result is 280. The sum of the digits of the given number is:
58. What is least possible number when it is divided by 13 leaves 8 and when divided by 7 leaves remainder 6?
59. If the number 8764x5 is divisible by 9, then find the least possible value of x where x is a two-digit number.
60. What is the Arithmetic mean of the first 'n' natural numbers?
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