In a class , except 18 all are above 50 years. 15 are below
50 years of age. how many people are there
a) 30 b) 33 c) 36 d) none of these.
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Answer Posted / janani
let us assume 'T' as total
so people above 50 years =T-18
people below 50 years= T-15
so no of ppl who are 50 years of age=18-15=3
henc we can solve as..(T-18)+3+(T-15)=T
=> 2T-33+3=T
=> T-30=0
=> T=30
a)30 is the right choice
| Is This Answer Correct ? | 3 Yes | 7 No |
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