Start learning →

For positive a,b,c,d, a:b=c:d is equivalent to

Aad=bc
Ba+b=c+d
Cab=cd
Dac=bd
Answer & Solution
Correct answer: A. ad=bc
Cross multiplication of a/b=c/d gives ad=bc.
Practise this question with Quill — ICSE Class 10 →

Keep practising Algebra: Equations, Inequations & Matrices

Browse all Algebra: Equations, Inequations & Matrices questions for ICSE Class 10, or explore more Mathematics topics.

Start a Algebra: Equations, Inequations & Matrices lesson →
Related questions
The smallest natural number that satisfies x > 4 isA linear inequation in one variable can be written asSolve x + 3 > 5, then x belongs toSolve (2 x - 5) / 3 >= 1 over integers.Solve -2 (x - 3) <= 4. Then x belongs toSolve 2 x + 5 > 11, then x belongs toSolve (x + 2)/3 - (x - 1)/2 <= 1. Then x belongs toThe largest integer x satisfying 3 x - 4 < 2 x + 5 is