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shashikant sonewane

· started a discussion

· 1 Months ago

error in taking value (Question: 105768.0 )

you have taken 8 instead of 23

Question:
What should come in place of the question mark (?) in the following questions?


272 × 52 - 1152 = (?)× 8

Options:
A) 125 
B) 500 
C) 625
D) 1250
E) None of these
Solution:

Ans: (c)

(27 × 5)2 - (115)2 = ? × 8

? × 8 = 1352 - 1152

? × 8 (135 + 115) (135 - 115)

\(\therefore \) \(?=\cfrac{250\times 20}{8}=625\)

kanhaiya jha

· commented

· 1 Months ago

Hi, a typing error occurred...Take it 8......
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