self Maths Puzzle

In a class , eight student s play basketball l. The remaining students, who represent 7 times the square root of the strength of the class, play football. What is the strength of the class?

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self Other Question

Twin Sisters A and B bought 2 wristwatches at 12 p.m. An Hour later, A's watch reads 1:02 p.m while B's watch reads 12:56 p.m. Later , on same day : If A's watch reads 10 p.m then at that time what is the reading on B's Watch? A natural number's a is given in base 10. The number a can be written as 212 in base b and 128 in base b + 2. The value of a + b in base 10 is