In a test Freya scores 25% more marks than Eva. Eva scores 50% more marks than Dominic. In total the three children score 140 marks. The test if out of 80. What percentage does Dominic score in the test?

Question

In a test Freya scores 25% more marks than Eva. Eva scores 50% more marks than Dominic. In total the three children score 140 marks. The test if out of 80. What percentage does Dominic score in the test?​

oobleck · Answer

Freya = 5/4 Eva Eva = 3/2 Dominic So, if Dominic scored d points, then d + 3/2 d + 5/4 * 3/2 d = 140 35/8 d = 140 d = 32 32/80 = 2/5 = 40%

In a test Freya scores 25% more marks than Eva. Eva scores 50% more marks than Dominic. In total the three children score 140 marks. The test if out of 80. What percentage does Dominic score in the test?​

In a test Freya scores 25% more marks than Eva. Eva scores 50% more marks than Dominic. In total the three children score 140 marks. The test if out of 80. What percentage does Dominic score in the test?