Solution : If there are 105 logs in the pile, how many layers are there?

Solution: How many positive real solutions are there in the polynomial

Solution: Find the total number of spheres piled

Solution: Find the numerical coefficient of the fifth term in the expansion

Solution: Find the equation whose roots are the reciprocals of the roots of the given equation

Solution: What is the value of k given the remainder of the quotient of the function?

Solution: What time after 5 o’clock will the hour hand and the minute hand be perpendicular

Solution: Find the number when four times is added to six times its reciprocal

Solution: If 10^x is 4, find the value of 10^(2x+1)

Solution: If f(x-1)=1+x^2, then what is f(x)?