Question
(a) The ratio of 20 minutes to 2 hrs.
(b) Find x if 5:4::125:x
[2 MARKS]
Answer: Option A
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Each Option: 1 Mark
(a) 2 hrs=60×2=120 minutes (1 hr = 60 minute)
Ratio of 20 minutes to 2 hrs = 20:120 =1:6
[ Remember that for taking ratio unit of both quantities should be same ]
(b) 5:4::125:x⇒54=125x
⇒54=125x
⇒45=x125
⇒x=125×45=25×4
⇒x=100
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