RRB Paramedical Staff Nurse Model Paper 2

Question : 45 of 100

Marks: +1, -0

I have x marbles. My elder brother has 3 more than mine, while my younger brother has 3 less than mine. If the total number of marbles is 15, the number of marbles that I have is

Validate

Solution:

Let number of marbles with me = x
Then, number of marbles with my elder brother = (x + 3)
And number of marbles with my younger brother = (x - 3)
Now, according to question,

x+(x+3)+(x-3)=15

⇒3x=15\;\;\;\;\;\;⇒x=15

Hence, the number of marbles with me

= 5

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