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Dinesh has the same number of brothers as sisters.
His sister, Lavanya, has twice as many brothers as she has sisters.
How many boys and girls are in the family?
Dinesh has -> br & si
br=si --------> (1)
Lavanya has -> br+1 & si-1 ---- adding Dinesh and discounting Lavanya
br+1=2*(si-1) --------> (2)
kids= ? = 1+br+si (adding Dinesh)
Combining (1) & (2) --> si+1=2si-2 --> si=3 & br=3
kids = 1+3+3 = 7
A group of ten children counted out their haul from trick or treating and found they had 58 sweets.
They shared them out so that each girl got seven sweets and each boy got five.
How many boys and girls were in the group?
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4 girls can complete writing 4 notebooks in 4 weeks.
How many notebooks can 12 boys and 12 girls complete in 12 weeks?
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