New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A bag contains 600 coins of ₹1 denomination and 1200

    coins of ₹2 denomination. If 10% of ₹1 coins and 15% of ₹2 coins are removed, the percentage of money removed from the bag is
    A 13% Correct Answer Incorrect Answer
    B 10% Correct Answer Incorrect Answer
    C 14% Correct Answer Incorrect Answer
    D 12% Correct Answer Incorrect Answer

    Solution

    ATQ, Let's calculate the percentage of money removed from the bag after 10% of ₹1 coins and 15% of ₹2 coins are removed. Step 1: Calculate the total value of ₹1 coins and ₹2 coins in the bag before removal. Total value of ₹1 coins = 600 coins × ₹1/coin = ₹600 Total value of ₹2 coins = 1200 coins × ₹2/coin = ₹2400 Step 2: Calculate the value of ₹1 coins and ₹2 coins removed. Value of ₹1 coins removed = 10% of ₹1 coins = 0.10 × ₹600 = ₹60 Value of ₹2 coins removed = 15% of ₹2 coins = 0.15 × ₹2400 = ₹360 Step 3: Calculate the total value of coins removed. Total value of coins removed = Value of ₹1 coins removed + Value of ₹2 coins removed Total value of coins removed = ₹60 + ₹360 = ₹420 Step 4: Calculate the percentage of money removed. Percentage of money removed = (Total value of coins removed / Total value of coins before removal) * 100% Percentage of money removed = (₹420 / ₹3000) × 100% Percentage of money removed ≈ 14% So, approximately 14% of the money has been removed from the bag.

    Practice Next