57:19

[8] Percentage -2| RRB NTPC Maths Free | Devotion Institute| Mahendra Khandelwal

1:05:09

[12] Profit & Loss -1| RRB NTPC Maths Free | Devotion Institute| Mahendra Khandelwal

53:25

[9] Percentage -3| RRB NTPC Maths Free | Devotion Institute| Mahendra Khandelwal

1:00:26

Percentage #1 | Maths | Railway NTPC & Group D Special Classes | By Mahendra Sir |

1:05:55

[10] Percentage -4| RRB NTPC Maths Free | Devotion Institute| Mahendra Khandelwal

1:12:08

[17] Ratio & Proportion -1 | RRB NTPC Maths Free | Devotion Institute| Mahendra Khandelwal

1:56:41

Percentage ( प्रतिशत ) | लक्ष्य NTPC Free Batch | RRB NTPC 2025 | Maths by Dharmender Dagar Sir

1:26:39

[PYQ] Percentage - 6 | RRB NTPC Maths Free | Devotion Institute| Mahendra Khandelwal