Question

if a:b=1:3, find the ratio of (2a +4b):(5a+6b).

Answer 1

Answer:

a:b=2:5⇒

b

a

=

5

2

(3a+4b):(5a+6b)=

5a+6b

3a+4b

=

b

5a+6b

b

3a+4b

(On dividing both numerator and denominator by b)

b

5a

+6

b

3a

+4

=

5×

5

2

+6

3×

5

2

+4

=

2+6

5

6

+4

=

5

26

×

8

1

=

20

13

Answer 2

Answer:

Step-by-step explanation:

(2*1+4*3) : (5*1+6*3)

(2+12) : (5+18)

14:23