TRICK 2 | Multiplication By Nines - Best Method to Multiply By 99,999,9999

Multiple ovulation embryo transfer is the best method employed in animals breeding. Why ?

Solve the following system of equations by using the method of cross multiplication 2x + 3y = 7 and 6x + 5y = 11.

A is a number. Adding 5 and multiplying by 10. Subtract 8 from this multiplication is divided by 2, then the result becomes 151. What is the number A?

Solve the following system of equations by using the method of cross-multiplication: 2x+3y=17,quad 3x-2y=6

Solve the following system of equations by using the method of cross-multiplication: 2x-y-3=0,quad 4x+y-3=0

Solve the following system of equations by using the method of cross-multiplication: 2x+y-35=0,quad 3x+4y-65=0

You have been given with a cup of coffee which is too hot to drink .Which among the following is the best method to cool it? Why? (i) Placing it in a beaker containing water (2) Placing it on the surface of wood (3) Placing it on the surface of an iron block

Digit not contained by arithmetic mean of the nine distinct numbers in the given set {9,99,999,9999,99999,999999,9999999,99999999,999999999}