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    Question

    Anjali puts Rs. 'a' in plan A and Rs. (a + 300) in plan B,

    both for 5 years. Plan A gives 9% and plan B offers 6% simple interest. The total interest she earns from both is Rs. 2,700. Find the value of 'a'.
    A 2520 Correct Answer Incorrect Answer
    B 3350 Correct Answer Incorrect Answer
    C 1576 Correct Answer Incorrect Answer
    D 3480 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,
    Simple interest = Principal ├Ч Rate ├Ч Time ├╖ 100

    ATQ,

    a ├Ч 9 ├Ч 5 ├╖ 100 + (a + 300) ├Ч 6 ├Ч 5 ├╖ 100 = 2700

    тЖТ 0.45a + 0.3a + 90 = 2700

    тЖТ 0.75a = 2700 - 90 = 2610

    тЖТ a = 2610 ├╖ 0.75 = 3480

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