Question

Joshua is 12 years old and his sister is three times as old as he. When joshua is 23 years old, how old will his sister be?

Answer 1

Answer:

Joshua age = 12

His sister age = 12*3 = 36 years .

Now, Joshua present age = 23 years .

He takes = 23-12 = 11 years to be that old .

so, after 11 years his sister will be = 36+11 = 47 yrs .

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