Calculate the possible rate for buying SGD Singapore Dollar

Calculate the possible rate for buying SGD (Singapore Dollar) in exchange for selling jPY as well as the possible rate for selling SGD in exchange for buying JPY. Assume that the exchange rates (Bid - Offered rate) are quoted as follows : USD 1 = JPY 118.10-118.20, USD 1 = SGD 1.7210-1.7215

Solution

Given,

USD / SGD           1.7210 – 1.7215

USD / JPY            118.10 – 118.20

BID ( SGD / JPY) = BID ( SGD / USD ) * BID ( USD / JPY )

= 1 / ASK (USD / SGD ) * BID ( USD / JPY )

= 1 / 1.7215 * 118.10

= 68.60

ASK ( SGD / JPY) = ASK ( SGD / USD ) * ASK ( USD / JPY )

= 1 / BID (USD / SGD ) * ASK ( USD / JPY )

= 1 / 1.7210 * 118.20

= 68.68

SGD 1 = JPY 68.60-68.68

1) Possible rate for buying SGD (Singapore Dollar) in exchange for selling JPY

2) possible rate for selling SGD in exchange for buying JPY