If the number 653ab is divisible by 90, then (a + b) = ?
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The difference between the two numbers is 2395. When the larger number is divided by the smaller ones, the quotient is 6 and the remainder is 15. The smaller number is
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If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x + y = ?
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The largest 4 digit number exactly divisible by 88 is:
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A sixdigit number is formed by repeating a threedigit number; for example, 256256 or 678678 etc. Any number of this form is always exactly divisible by :
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The sum of first 45 natural numbers is:
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If 1 ≤ a ≤ 2 and 1 ≤ b ≤ 3, then least possible value of (2a – 3b) is:
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The Unit digit in the product (784 X 618 X 917 X463)
Solution4 X 8 X 7 X 3 
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If (64)^{2}  (36)^{2} = 20 x a, then a = ?
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1397 x 1397 = ?
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(?) + 3699 + 1985  2047 = 31111
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