# Explanation

In the first 10 minutes he travels 60 x 10/60 = 10 km

In the second 10 minutes he travels 54 x 10/60 = 9 km

And 8 km, 7 km, 6km …. In the subsequent 10 minutes

10 + 9 + 8 + 7 + 6 = 40 km

The remaining 2 minutes at (60 – 5 x 6) = 30kmph

So time = 2/30 = 1/15 hr = 4 minutes

So total time for 42 km = 5 x 10 + 4 = 54 minutes.
{"found_math": false, "script_math_tex": 0, "script_math_asciimath": 0, "math_annotations": 0, "math_alttext": 0, "mathml": 0, "mathjax_tag": 0, "mathjax_inline_tex": 0, "mathjax_display_tex": 0, "mathjax_asciimath": 0, "img_math": 0, "codecogs_latex": 0, "wp_latex": 0, "mimetex.cgi": 0, "/images/math/codecogs": 0, "mathtex.cgi": 0, "katex": 0, "math-container": 0, "wp-katex-eq": 0, "align": 0, "equation": 0, "x-ck12": 0, "texerror": 0, "url": "https://www.kitabee.in/question-explanation/123", "fetch_time": 1632692416000000000, "content_mime_type": "text/html", "warc_filename": "crawl-data/CC-MAIN-2021-39/segments/1631780057973.90/warc/CC-MAIN-20210926205414-20210926235414-00161.warc.gz", "warc_record_offset": 855302455, "warc_record_length": 12113, "token_count": 142, "char_count": 344, "score": 3.953125, "int_score": 4, "crawl": "CC-MAIN-2021-39", "snapshot_type": "latest", "language": "en", "language_score": 0.7878431677818298, "file_path": "/sailhome/yjruan/project/latent-lm/data/processed/finemath-4plus/finemath-4plus/train-00025-of-00064.parquet"}