Sangeeta wants to buy a soap that costs ₹10. She has a five-rupee coin, 2…
2023
Sangeeta wants to buy a soap that costs ₹10. She has a five-rupee coin, 2 one-rupee coins and 5 fifty-paise coins. How much more money does she need to buy the soap ?
- A.
₹ 2.50
- B.
₹ 0.50
- C.
₹ 1.50
- D.
₹ 2.00
Show answer & explanation
Correct answer: B
To find how much more money is needed, add up the value of every coin Sangeeta holds (count times denomination) to get the total money available, then subtract this total from the cost of the item — the difference is the additional amount required.
Value of the five-rupee coin = 1 × ₹5 = ₹5
Value of the two one-rupee coins = 2 × ₹1 = ₹2
Value of the five fifty-paise coins = 5 × ₹0.50 = ₹2.50
Total money Sangeeta has = ₹5 + ₹2 + ₹2.50 = ₹9.50
Amount still needed = Cost of soap − Money held = ₹10 − ₹9.50 = ₹0.50
Adding the money she already has to this shortfall confirms the result: ₹9.50 + ₹0.50 = ₹10, exactly the cost of the soap.