0 Deepak BoraNewbie Asked: July 23, 20202020-07-23T13:06:16+05:30 2020-07-23T13:06:16+05:30In: Competition If a:b = 7:5 and c:d = 2a:3b, then ac:bd is ? 0 Question of ratio for competition exams ratio problem Share Facebook 4 Answers Voted Oldest Recent AARCHIT JOSHI 2020-07-23T13:34:41+05:30Added an answer on July 23, 2020 at 1:34 pm Since a and b are in the ratio 7:5 Then, Let a = 7k and b = 5k %3D Then c = 2a = 2 x 7k = 14k %3D d = 3b = 3 x 5k = 15k %3D – c:d = 14:15 %3D – ac : bd = 14 x 7:15 x 5 = 98:75 0 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp aarchitjoshi 2020-07-23T13:36:46+05:30Added an answer on July 23, 2020 at 1:36 pm Since a and b are in the ratio 7:5 Then, Let a = 7k and b = 5k %3D Then c = 2a = 2 x 7k = 14k %3D d = 3b = 3 x 5k = 15k %3D – c:d = 14:15 %3D – ac : bd = 14 x 7:15 x 5 = 98:75 0 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp aarchitjoshi 2020-07-23T13:40:00+05:30Added an answer on July 23, 2020 at 1:40 pm Since a and b are in the ratio 7:5 Then, Let a = 7k and b = 5k Then c = 2a = 2 x 7k = 14k d = 3b = 3 x 5k = 15k c:d = 14:15 ac : bd = 14 x 7:15 x 5 = 98:75 0 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp Tahia binte Humayun 2020-07-23T14:24:57+05:30Added an answer on July 23, 2020 at 2:24 pm a:b = 7:5 c:d = 2a:3b ac:bd = ? As a:b = 7:5 we get a=7 and b=5 So, c:d = 2*7:3*5 or, c:d = 14:15 Therefore, c = 14 and d = 15 ac or, a*c = 7*14=98 and bd or, b*d = 5*15=75 So, ac:bd = 98:75Â (answer) 0 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp Leave an answerLeave an answerCancel reply Featured image Select file Browse Add a Video to describe the problem better. Video type Youtube Vimeo Dailymotion Facebook Choose from here the video type. Video ID Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs". Click on image to update the captcha. Save my name, email, and website in this browser for the next time I comment. Related Questions Daftar Nama Nama Situs Slot Gacor Hari Ini Paling Hoki Terpercaya Slot E Wallet Tapak Kasino Dalam Talian Terbaik Daftar 10 Link Situs Slot Online Gacor Resmi Terpercaya Hari Ini Situs Slot Online Depo Dana Terpercaya 24 Jam What is the fee structure of Woodstock School, Mussoorie? How can I get admission there?

## Since a and b are in the ratio 7:5

## Then, Let a = 7k and b = 5k %3D

## Then c = 2a = 2 x 7k = 14k %3D

## d = 3b = 3 x 5k = 15k %3D

## – c:d = 14:15

## %3D

## – ac : bd = 14 x 7:15 x 5 = 98:75

Since a and b are in the ratio 7:5

Then, Let a = 7k and b = 5k %3D

Then c = 2a = 2 x 7k = 14k %3D

d = 3b = 3 x 5k = 15k %3D

– c:d = 14:15

%3D

– ac : bd = 14 x 7:15 x 5 = 98:75

Since a and b are in the ratio 7:5

Then, Let a = 7k and b = 5k

Then c = 2a = 2 x 7k = 14k

d = 3b = 3 x 5k = 15k

c:d = 14:15

ac : bd = 14 x 7:15 x 5 = 98:75

a:b = 7:5

c:d = 2a:3b

ac:bd = ?

As a:b = 7:5

we get a=7 and b=5

So, c:d = 2*7:3*5

or, c:d = 14:15

Therefore, c = 14 and d = 15

ac or, a*c = 7*14=98

and bd or, b*d = 5*15=75

So, ac:bd = 98:75Â (answer)