1.

Vandana bought a watch for X 600 and sold it the same day for X 688.50 at a credit of 9 months and this way she gained 2%. Find the rate of interest per annum.

Answer»

`16(2)/(3)%`
`15(2)/(3)%`
`11(2)/(3)%`
`5(2)/(3)%`

Answer :A


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