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If 64 xx 52 = 17, 48 xx 56 = 23 and 74 x...

If `64 xx 52 = 17, 48 xx 56 = 23 and 74 xx 35 = 19`,then `84 xx 37 =?`

A

a. 32

B

b. 28

C

c. 22

D

d. 20

Text Solution

Verified by Experts

The correct Answer is:
C
`64xx52implies(6+4)+(5+2)=17`
`48xx56implies(4+8)+(5+6)=23`
and `74xx35implies(7+4)+(3+5)=19`
Similarly `84xx37implies(8+4)+(3+7)=22`
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