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ICSE Class 7 Answered

Sound travels at 335 metre per second in air. Find its speed in km per hour.  
Asked by keshavr801 | 11 Jan, 2018, 07:57: PM
answered-by-expert Expert Answer
begin mathsize 16px style Speed space of space sound equals 335 space straight m divided by straight s equals 335 cross times 18 over 5 space km divided by hr equals 1206 space km divided by hr end style
Answered by Rashmi Khot | 12 Jan, 2018, 11:47: AM

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ICSE 7 - Maths
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