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Grade 9 | ASSET Question-A-Day

30 September 2020 | Science

Red, Green and Blue coloured light can be mixed in different proportions to obtain other colours. For example,
Red + Green = Yellow
Green + Blue = Cyan
Red + Blue = Magenta
Benedict’s Solution is a compound used to test for the presence of sugar in a solution. A high concentration of sugar gives a red colour and a lower concentration of sugar gives a yellow colour. In which of these coloured lights can the test results be seen correctly?

A
Red
B
Blue
C
Yellow
D
Cyan

Yesterday's Question | Maths

I started two clocks at the same time. One runs slow and loses 1 minute every hour. The other one is fast and gains 3 minutes every hour. How long will it take for the faster clock to be exactly one hour ahead of the slower clock?

A
1 day
B
18 hours
C
15 hours
D
12 hours

Correct Answer: C

 

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