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Q. Find unit digit of product (173)^45 × (152)^77 × (777)^999.
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Q. The value of x in (x+6) (x+2) = x is
Q. The smallest number, which when diminished by 3, is divisible by 21, 28, 36 and 45 is ?
Q. Two-third of a positive number and 25/216 of its reciprocal are equal. The number is
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Q. A number, on subtracting 15 from it, reduces to its 80%. What is 40% of the number ?
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