Intermediate Maths Challenge 2025 (UKMT) | Every Question Solved

Timestamps for individual questions: Q1: 0:53, Q2: 1:41; Q3: 2:39, Q4: 4:06; Q5: 04:45; Q6: 5:37; Q7: 7:06; Q8: 8:39; Q9: 10:06; Q10: 12:05; Q11: 13:46; Q12: 14:53; Q13: 16:32; Q14: 17:32; Q15: 18:15; Q16: 19:46; Q17: 22:05; Q18: 24:09; Q19: 27:37; Q20: 29:51; Q21: 32:31; Q22: 34:19; Q23: 36:14; Q24: 38:23; Q25: 41:54 ______________________________________ Free online maths challenge courses: Primary (age 9-11): https://bit.ly/primarymathschallenge Junior (age 10-13): https://bit.ly/ukmtjuniormathschallenge Intermediate (age 13-16): https://bit.ly/intermediatemathschallenge Senior (age 16-18): https://bit.ly/seniormathschallenge All online courses: https://courses.mathsaurus.com/ ______________________________________ Mathsaurus website: https://mathsaurus.com/ Get ready for A-level maths: https://bit.ly/getreadyforalevelmaths Instagram: https://www.instagram.com/mathsaurus/ Twitter: https://twitter.com/mathsaurus Facebook: https://www.facebook.com/Mathsaurus TikTok: https://www.tiktok.com/@mathsaurus Calculator guide: https://bit.ly/whichcalculator Setup for online teaching/how I make my videos: https://bit.ly/teachingmathsonline This video includes questions from past UKMT maths challenge papers with the express permission of UK Mathematics Trust. The questions may not be copied or made available elsewhere without the permission of the UK Mathematics Trust except in accordance with their policy on the use of intellectual property which may be found here: bit.ly/UKMTIP