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Some equations have been solved on the b...

Some equations have been solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis. If 9* 7 = 32, 13 * 7 = 120, 17 *9 = 208, then 19 * 11 = ?

A

150

B

180

C

210

D

240

Text Solution

Verified by Experts

The correct Answer is:
D
`9+7=16, " " 9-7=2`
`16xx=32 " " `
`13+7=20, " " 13-7=6`
`20xx6=120 " " `
`17+9=26, " " 17-9=8`
`26xx8=208" " `
`19+11=30, " " 19-11=8`
`30xx8=240`
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