Sainik School Entrance Exam 2021 Solved Paper

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Question : 2 of 150

Marks: +1, -0

Find the sum of

3.\ov{2}

and

5.4

.

${78}/{3}$
${58}/{3}$
${58}/{9}$
${78}/{9}$

Solution:

(d)

3.\ov2=3.222......

x=3.222......

....(1)

10 x=32.22..... ....(2)

Eqn. (2)

-

Eqn. (1),

9 x=29 ⇒ x={29}/{9}

5. \ov{4}=5.444....

y=5.444..... ....(3)

10 y=54.44..... ...(4)

Eqn. (4)

-

Eqn. (3),

9 y=49 ⇒y={49}/{9}

∴ x+y={29}/{9}+{49}/{9}={78}/{9} .

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