Question

If the product of two numbers is 320 and their ratio 1 : 5, then the sum of these two numbers is (a) 42 (b) 48 (c) 44 (d) 40 ​

Answer 1

Answer:

x×5x=320

=5xsquare=320

=x=8

no.=8 and 40

sum =48

Answer 2

Answer:

Let two no.are x and y

then xy =320

ATQ

x/y=1/5

y=5x

.

put the value of y in above equation.

5x^2=320

x^2=64

x=8 and y is 40

then the sum is 48

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