Q. If (64)^2 - (36)^2 = 20 * x, then x = ?

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Q. Which one of the following can't be the square of natural number ?

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Q. (2^2 + 4^2 + 6^2 + ... + 20^2) = ?

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Q. 35 + 15 x 1.5 = ?

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Q. 666 ÷ 6 ÷ 3 = ?

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Q. The sum of all two digit numbers divisible by 5 is:

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Q. The difference between the place values of two sevens in the numeral 69758472 is

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Q. On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will the remainder ?

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Q. What is the unit digit in the product (3^65 x 6^59 x 7^71)?

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Q. 3251 + 587 + 369 - ? = 3007

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Q. 7589 - ? = 3434

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Q. 217 x 217 + 183 x 183 = ?

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Q. The unit digit in the product (784 x 618 x 917 x 463) is:

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Q. If the number 653 xy is divisible by 90, then (x + y) = ?

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Q. 3897 x 999 = ?

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Q. What is the unit digit in 7^105 ?

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Q. Which of the following numbers will completely divide (4^61 + 4^62 + 4^63 + 4^64) ?

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Q. 106 x 106 - 94 x 94 = ?

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Q. A number when divided successively by 4 and 5 leaves remainders 1 and 4 respectively. When it is successively divided by 5 and 4, then the respective remainders will be

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Q. 8796 x 223 + 8796 x 77 = ?

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