Question

A car covers a distance of 450 m in 1 minute whereas a train covers 69

km in 45 minutes. Find the ratio of their speeds.​

Answer 1

Answer:

2. The value of x + x(xx) when x = 2 is:

(a) 10, (b) 16, (c) 18, (d) 36, (e) 64

Solution:

x + x(xx)

Put the value of x = 2 in the above expression we get,

2 + 2(22)

= 2 + 2(2 × 2)

= 2 + 2(4)

= 2 + 8

= 10

Answer: (a)

Hello help our.answer

Answer 2

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To find the ratio first we have to convert km in m or m to km .

I am going to convert km in m .

69 km = 69000 m

Ratio —» $\mathtt{\frac{450\:m}{1\:min} : \frac{69000}{45}}$