A red lamp flashes every 10 seconds,a yellow lamp flashes every 24 seconds and a blue lamp flashes every 30 seconds. How many times will the three lamps flash at the same time in 10 minutes?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.