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Jagadish Kisara

· started a discussion

· 1 Months ago

6 INSTEAD OF 4 (Question:674061.2)

4 IS WRITTEN INSTEAD OF 6 IN LAST BUT ONE STEP.
SO ANS IS WRONG. ? CANNOT BE 10 AND 12 AT ONCE.
SO THE QUESTION IS ONLY WRONG

Question:

Directions: What approximate value will come in place of the question mark?

5?−5?    =  (25)2×(3127)4÷(125)4−(626)4÷(25)2 

Options:
A)

12

B)

20

C)

15

D)

7

E)

25

Solution:

Ans:(a) 


5?−5?    =  (25)2×(3127)4÷(125)4−(626)4÷(25)2   

=  5?−5?    =  (52)2×(55)4÷(53)4−(54)4÷(52)2   

=  5?−5?    =  54×520÷512−516÷54   

=  5?−5?    =  524−12−516−4   

=  5?−5?    =  512−512   

? = 12

Knowledge Expert

· commented

· 1 Months ago

Dear Student,
Question is correct,
In Last Question,Kindly look at the solution carefully
8836 + 92 ÷ 23
= 8836 + 4
= 8840
You can take nearest possible answer i.e.8842
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