7th Class Mathematics Simple Equations Question Bank Simple Equation

  • question_answer
    Match the following.
    Column-l Column-II
    (i) Arjun's father's age is 5 years more than four times Arjun's age. Find Arjun's age, if his father is 37 years old. (p) 9
    (ii) Ramesh says that he has 8 notebooks more than four times the number of notebooks Anuj has. Ramesh has 48 notebooks. How many notebooks does Anuj have? (q) 8
    (iii) Varun says that he has 11 erasers more than five times the number of erasers erasers. How many erasers does Sameer have? (r) 10
               

    A)  (i)\[\to \] (q). (ii)\[\to \] (p), (iii) \[\to \] (r)

    B)  (i) \[\to \](q), (ii)\[\to \] (r), (iii) \[\to \](p)

    C)  (i) \[\to \] (p), (ii) \[\to \] (q), (iii) \[\to \] (r)

    D)  (i) \[\to \] (p), (ii) \[\to \] (r), (iii) \[\to \] (q)

    Correct Answer: B

    Solution :

    (i) Let Arjun's age be x. So, Arjun's father's age \[=4x+5\] According to question, \[4x+5=37\] \[\Rightarrow \] \[4x=37-5\Rightarrow 4x=32\Rightarrow x=8\] (ii) Let Anuj has x notebooks. So, Ramesh has \[(4x+8)\] notebooks According to question,             \[4x+8=48\]             \[\Rightarrow \] \[4x=48-8\Rightarrow \,4x=40\] \[\Rightarrow \]            \[x=10\] (ii) Let Sameer has x erasers. So, Varun has \[(5x+11)\] erasers. According to question, \[5x+11=56\Rightarrow 5x=56-11\Rightarrow 5x=45\] \[\Rightarrow \,x=9\]


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