Un capital placé 9%pendant une certaine durée acquis une valeur de 17400Fcfa. Placé à 10% pendant 1 ans de moins ce capital aurait fournir un intérêt de 4800Fcfa. Calculer ce capital et la première durée de placement

y=4

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.