Question

if the cost of 15 dolls is rupees 35 what will be cost of 39 dolls ​

Answer 1

15 dolls ......35 rupees

39 dolls ......x rupees

x= (39×35)/15= 1365/15= 91 rupees

Answer 2

cost of 15 dolls=35

cost of 39 dolls=?

cost of 1 doll=35/15

=7/3

cost of 39 dolls=7/3×39

=91

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