107 x 107 + 93 x 93 = ?
107 x 107 + 93 x 93= (107)2 + (93)2
= (100 + 7)2 + (100 - 7)2
= 2 x [(100)2 + 72] [Ref: (a + b)2 + (a - b)2 = 2(a2 + b2)]
= 20098
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How many of the following numbers are divisible by 3 but not by 9 ? |
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$\dfrac{(963 + 476)^2 + (963 - 476)^2}{(963 \times 963 + 476 \times 476)}$=? |
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8597 - ? = 7429 - 4358 |
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The smallest prime number is: |
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12345679 x 72 = ? |
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Which one of the following is the common factor of (4743 + 4343) and (4747 + 4347) ? |
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-84 x 29 + 365 = ? |
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In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, what is the dividend ? |
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4500 x ? = 3375 |
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Which of the following numbers will completely divide (4915 - 1) ? |
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