3 6 with her? Bansi hasť times as many two-typee coins as he has five-rupee coins. If he has in all a sum of Rs 77, how

Question

3
6
with her?
Bansi hasť times as many two-typee coins as he has five-rupee coins. If he has in all a sum of Rs
77, how many coins of each denomination does he have?
The perimeter of a rectangular swimming pool is 154 m. Its length is 2 m more than twice its
breadth. What are the length and the breadth of the pool?
Four years later the sum of their ages will be
7​

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Quinn 3 weeks 2021-09-04T01:38:55+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-09-04T01:40:36+00:00

    Answer:

    Step-by-step explanation:

    Let no. of Rs. 5 coins be x. So, no. of Rs. 2 coins = 3x

    Given x(5) + 3x(2) = 77

        =>  5x + 6x = 77  => 11x = 77  => x = 7.

    Therefore, Bansi has 7 coins of Rs. 5 and 21 coins of Rs. 2.

    Perimeter = 2(l+b) = 154

    => l + b = 77

    Given, l = 2b + 2

    So, 2b + 2 + b = 77

    => 3b = 75

    =>  b = 25.

    So, length = 2(25) + 2 = 52 m and breadth = 25 m.

    I can’t understand the last question. Hope the above two will help you!!!!

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