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If 56 xx 11 = 9 , 37 xx 13 =6, 42 xx ...

If ` 56 xx 11 = 9 ,
37 xx 13 =6,
42 xx 12 =3 `,
then find the value of `87 xx77`.

यदि `56 xx 11 =9 , 37 xx 13 =6 , 42 xx 12 = 3`, तो `87xx77` का मान बताइए।

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
A
`56xx11=9`
`implies56-11=9`
`implies45implies4+5=9`
`37xx13=6`
`implies37-13=6`
`implies24implies2+4=6`
`42xx12=3`
`implies42-12=3`
`implies30implies3+0=3`
Therefore,
`87xx77`
`implies87-77=10implies1+0=1`
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