alleryજો a : b = 3 : 4 અને b : c = 5 : 7, તો a : c છે
A3 : 7
B15 : 28
C12 : 35
D21 : 20
Answer & Solution
Correct answer: B. 15 : 28
**સામાન્ય b:** a : b = 15 : 20 (5 વડે ગુણાકાર કરો)
b : c = 20 : 28 (4 વડે ગુણાકાર કરો).
**તો a :** c = 15 : 28.
Keep practising Arithmetic Algebra Mensuration
Browse all Arithmetic Algebra Mensuration questions for RPF Constable, or explore more Quantitative Aptitude topics.
Related questions
True or false: arithmeticKey in the arithmetic answerIn a right triangle with legs 5 cm and 12 cm, the hypotenuse isThe volume of a cube of side 4 cm isThe perimeter of a square is 36 cm. Its area isThe area of a circle with radius 7 cm is (use pi = 22/7)The smallest number divisible by both 12 and 18 isThe sum of three consecutive natural numbers is 72. The middle number is