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प्रश्न
In a bag there are 5 and 2 rupee coins. If they are equal in number and their worth is ₹ 70, then
There are ______ 5 rupee coins and ______ 2 rupee coins.
रिकाम्या जागा भरा
उत्तर
There are 10 ₹ 5 rupee coins and 10 ₹ 2 rupee coins.
Explanation:
Consider the equation,
5x + 2x = 70
7x = 70
x = 70/7
x = 10
There are 10 ₹ 5 coins and 10 ₹ 2 coins.
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