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Suddhatem Jain

· started a discussion

· 1 Months ago

the answer given is wrong (Question:586485.0)

The answer should be 10. As on LHS power is 7 so to make 7 on RHS 10 should be there instead of question mark.

Question:

0.1253÷0.252×0.52=0.5?-3    

Options:
A)

10

B)

5

C)

8

D)

7

E)

None of these

Solution:

Ans: (a)

0.1253÷0.252×0.52=0.5?-3    

⇒0.59+0.54×0.52=0.5?-3(0.5)4×(0.5)2=(0.5)?−3⇒(0.5)9+(0.5)4×(0.5)2=(0.5)?−3   

⇒0.59-4+2=0.5?-3    

⇒0.57=0.5?-3    

= ?=10


Knowledge Expert

· commented

· 1 Months ago

Dear student
We have fixed it, the correct answer will be 10.

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