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Secondary 1 | Maths
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Shreya
Shreya

Secondary 1 chevron_right Maths chevron_right Singapore

Please help me to solve this problem sum on speed. Tried many times but unable to solve. Thank you

Date Posted: 1 year ago
Views: 197
Marcus Tan
Marcus Tan
1 year ago
At 0830 hrs,
James has travelled 60 × 1/2 = 30 km

For both of them to meet, they must travel a combined distance of 100 - 30 = 70 km

Let the time taken for them to meet be x hours.

After x hours,
James has travelled 60x km
Kumar has travelled 50x km
Total distance travelled = 60x + 50x
= 110x km

70 = 110x
x = 7/11 hrs
~ 38 mins (nearest minute)

0830 hrs → 38 mins → 0908 hrs

James and Kumar will pass each other at around 0908 hrs.

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PrimaryOne
Primaryone's answer
180 answers (A Helpful Person)
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Shreya
Shreya
1 year ago
Thank you very much for your help. It helped be understand better.
Shreya
Shreya
1 year ago
Thank you very much. Help me to understand the how to work out the problem sum better.
Shreya
Shreya
10 months ago
Thank you