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.
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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