SSC CGL 20191)The value of \({7+8 \times8 \div8 of 8+8\div8\times4 of 4}\over{4\div4 of 4+4\times4\div4-4\div4 of 2}\) is :

Correct Option: D

6.4

\({7+8 \times8 \div8 of 8+8\div8\times4 of 4}\over{4\div4 of 4+4\times4\div4-4\div4 of 2}\);

On solving by the BODMAS rule,

\(7+{8\times8\over8\times8}+8\times{1\over8}\times16\over4\div16+4-4\times{1\over8}\) = \(7+1+16\over{1\over4}+4-{1\over2}\) = \(24\over{1+16-2\over4}\) = \(32\over5\) =6.4

SSC CGL 20162)

If l + m + n = 9 and l2 + m2 + n2 = 31, then the value of lm + mn + nl will be

Correct Option: A

25

3)500 soldiers in a fort had enough food for 30 days but 125 soldiers were transferred to another fort. For how many days did the food last then?

Correct Option: D

40 days

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