Question

Two numbers are multiplied and their product obtained is 462. If both the numbers are double and then multiplied, what will be the product

Answer 1

Let the numbers be a and b

According to question

a*b = 462

=> ab = 462 -----(1)

Now,

New numbers are 2a and 2b

Product = 4ab

= 4 * 462 (using equation 1)

= 1848

Answer 2

let both the numbers be x and y
x multiplied by y gives 462
both numbers are doubled
2x multiplied by 2y
4 xy .multiply 462with 4 gives 1848