Question Details

?2 + 23 = 85% of 280 - 94
What will come in place of the question mark (?) in the following questions?

Options

A

18

B

11

C

16

D

14

E

8

Show Answer

Correct Answer :

Option B

11

Solution :

The correct option is 11.

To find the value that comes in place of the question mark (?), let the unknown value be x.

The given equation is:

x2+23=85% of 280-94

Step 1: Calculate 85% of 280.

85% of 280=85100×280

Simplifying the fraction:

85100×280=1720×280

=17×14=238

Step 2: Substitute this value back into the right side of the equation.

x2+23=238-94

x2+23=144

Step 3: Solve for x.

Subtract 23 from both sides:

x2=144-23

x2=121

Take the square root of both sides:

x=121

x=11

Thus, 11 will come in place of the question mark (?).

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